250+ Positive Words Starting with “I” That Motivate Everyday

We all need a little motivation to keep us going for the entire day. Learning words with positive connotations can give us much-needed zeal.

Here is a list of positive words starting with ‘I’ to enliven your spirits and keep you happy.

Positive Words Starting With “I” Boost Your Mood:

Icon

Definition: A person who is the object of uncritical devotion.

Synonyms: Hero, classic, model, god, exemplar, ideal.

Example: Marilyn Monroe is one of the many icons in pop culture.

Ideal

Definition: To express a quality or idea.

Synonyms: Theoretical, theoretic, metaphysical, abstract, conceptual, intellectual, mental, hypothetical, spiritual, speculative, ideational, notional, impractical, invisible, cosmic, romantic, immaterial, visionary, impalpable, insensible.

Example: He is the ideal man she could ever be with.

Idealist

Definition: To be marked by a tendency to be guided more by ideals and not reality.

Synonyms: Theoretical, theoretic, metaphysical, abstract, conceptual, intellectual, mental, hypothetical, spiritual, speculative, ideational, notional, impractical, invisible, cosmic, romantic, immaterial, visionary, impalpable, insensible.

Example: An idealistic attempt was made but was in vain when the result was declared.

Related: Positive Words Starting With Z

Idol

Definition: A person who is the object of uncritical devotion.

Synonyms: Hero, classic, model, god, exemplar, ideal.

Example: His idol was Johnny Depp.

Idylls

Definition: A time of carefree fun.

Synonyms: Pleasures, enjoyments, larks, gambols, revels, romps, festivities, flings, sprees, amusements, ploys, pranks, binges, diversions, capers, carouses, antics, bums, recreations, souses, benders, shenanigans, toots, busts.

Example: Her time in college was not the idyll that she expected it to be.

Illustrious

Definition: To stand above others in ranking or importance.

Synonyms: Distinguished, outstanding, prestigious, famous, eminent, notable, honored, noble, celebrated, star, renowned, superior, glorious, infamous, bright, preeminent, exalted, reputable, notorious, astral, dominant, predominant, paramount.

Example: He was an illustrious actor who is a sure bet for an Oscar.

Imaginative

Definition: To have the skill to create new things with the mind.

Synonyms: Inventive, creative, innovative, innovational, talented, ingenious, clever, gifted, originative, original, innovatory, prolific, inspired, resourceful, generative, fertile, fecund, productive, fruitful, germinal.

Example: She used her imaginative skills to design her home the way she wanted it to look.

Immaculate

Definition: To be free from any trace of indecency.

Synonyms: Pure, clean, modest, chaste, spotless, virginal, vestal, decent, decorous, unblemished, virgin, unsullied, untarnished, unsoiled, stainless, unspotted, unstained, proper, cultivated, inoffensive, innocent.

Example: She is an immaculate soul who would definitely become an angel after death.

Immediate

Definition: To occur without any noticeable lapse in time.

Synonyms: Instantaneous, instant, rapid, swift, straightaway, quick, summary, prompt, speedy, fast.

Example: His reaction was immediate—he hit the brakes as soon as he saw a puppy hurt on the roadside.

Immense

Definition: Something that is unusually large.

Synonyms: Enormous, tremendous, vast, huge, gigantic, massive, colossal, giant, mammoth, monumental, astronomical, monstrous, bumper, sizable, mountainous, big, mighty, great, astronomic, considerable, monster, prodigious, humongous, cosmic, mega, substantial, super, heroic, whopping, planetary, jumbo, oversized, infinite, supersized, overwhelming.

Example: An immense fight broke out right after the false accusations were made.

Immerse

Definition: To be attentive.

Synonyms: Interest, intrigue, fascinate, occupy, engross, involve, attract, engage, absorb, busy, enthrall, distract, enchant, enwrap, bemuse, captivate, preoccupy, bewitch, mesmerize, hypnotize, obsess, charm, allure, monopolize.

Example: She was immersed in the subject of quantum physics.

Immune

Definition: To not be subjected to something where others are required.

Synonyms: Exempt, protected, shielded, secure, privileged, invincible, inviolate, invulnerable, inviolable, untouchable, unassailable, sacred, hallowed.

Example: The doctor told her that she was immune to the disease and would get better faster.

Immunity

Definition: To not be subjected to something where others are required.

Synonyms: Exempt, protected, shielded, secure, privileged, invincible, inviolate, invulnerable, inviolable, untouchable, unassailable, sacred, hallowed.

Example: The doctor recommended some medicines to increase her immunity.

Impactful

Definition: To have the power to affect feelings.

Synonyms: Impressive, emotional, exciting, poignant, inspirational, affecting, meaningful, passionate, excitable, touching, moving, dramatic, stirring, expressive, theatrical, significant, responsive, demonstrative, provoking, stimulating, melodramatic.

Example: His speech was impactful among the teens.

Related: Positive Words Starting With F

Impartial

Definition: To be free from bias and marked by justice.

Synonyms: Equitable, equal, unbiased, objective, disinterested, evenhanded, dispassionate, unprejudiced, candid, square, frank, straightforward, balanced, reasonable, forthright, rational, open, straight.

Example: The teacher was impartial toward her students.

Impassioned

Definition: To express the great depth of feeling.

Synonyms: Passionate, fervent, warm, passional, intense, ardent, emotional, charged, enthusiastic, demonstrative, glowing, religious, fiery, fervid, perfervid, blazing, burning, sentimental, gushy, maudlin, obsessed, sugary, infatuated, unreserved.

Example: She made a very impassioned plea for justice, which often went unheard.

Impeccable

Definition: To be without flaws or any kind of fault.

Synonyms: Flawless, perfect, ideal, excellent, immaculate, superb, faultless, exceptional, prime, great, seamless, unblemished, absolute, polished, marvelous, classic, fine, expert, entire, marvelous, dandy, complete, consummate, special, accurate, intact, finished.

Example: She was awarded for her impeccable behavior in class.

Important

Definition: To have great meaning.

Synonyms: Major, significant, historic, big, meaningful, much, substantial, momentous, exceptional, tectonic, remarkable, consequential, eventful, material, decisive, outstanding, valuable, notable, prominent, great, strategic, distinctive, critical, vital, earnest, prestigious, sincere.

Example: The meeting was quite important, so everyone was asked to attend it immediately.

Impress

Definition: To act upon to cause a response.

Synonyms: Influence, affect, impact, touch, inspire, strike, interest, sway, reach, dazzle, bother, attract, fascinate, involve, move, disturb, enthrall, concern, enrapture, penetrate, captivate, engage, trouble, entrance, harass, upset, stir, plague, upset, perturb, bewitch, fluster, perturb, pierce, charm, transport, smite, color, discomfort.

Example: He tried all the ways to impress her but failed every time.

Impressive

Definition: To act upon to cause a response.

Synonyms: Influence, affect, impact, touch, inspire, strike, interest, sway, reach, dazzle, bother, attract, fascinate, involve, move, disturb, enthrall, concern, enrapture, penetrate, captivate, engage, trouble, entrance, harass, upset, stir, plague, upset, perturb, bewitch, fluster, perturb, pierce, charm, transport, smite, color, discomfort.

Example: His act was quite impressive.

Improve

Definition: To make something better.

Synonyms: Enhance, help, better, refine, upgrade, amend, remedy, ameliorate, remediate, enrich, perfect, reinforce, strengthen, intensify, correct, boost, meliorate, rehabilitate, reform, rectify, revise, rework, fine, revamp, fortify, emend, polish, rehab, reinforce, retouch, hone.

Example: The teacher asked the student to improve in his studies.

Improvement

Definition: To make something better.

Synonyms: Enhance, help, better, refine, upgrade, amend, remedy, ameliorate, remediate, enrich, perfect, reinforce, strengthen, intensify, correct, boost, meliorate, rehabilitate, reform, rectify, revise, rework, fine, revamp, fortify, emend, polish, rehab, reinforce, retouch, hone.

Example: The teacher was happy to see the improvement in her student.

Include

Definition: To be a part of a whole.

Synonyms: Involve, encompass, contain, entail, carry, comprise, subsume, number, embrace, incorporate, comprehend, receive, have, possess, own, constitute, embody, integrate, admit, form, hold, compose, make, assimilate.

Example: She tried to include all the important topics but was not given enough time to present them to the class.

Increase

Definition: To make greater in size or number.

Synonyms: Boost, accelerate, augment, expand, multiply, raise, enhance, extend, intensify, maximize, amplify, escalate, swell, strengthen, reinforce, stoke, enlarge, compound, build up, jump, inflate, complement, stretch, elongate, magnify, dilate.

Example: She increases her meditation time every week by five minutes.

Incredible

Definition: Something that is too extraordinary to believe.

Synonyms: Incredulous, unbelievable, impossible, unlikely, unimaginable, inconceivable, unthinkable, fantastical, absurd, implausible, questionable, unreasonable, dubious, silly, uncompelling, debatable, hopeless, shaky, suspicious, suspect.

Example: It was incredible to watch the meteor show.

Independent

Definition: Someone who does not depend on others.

Synonyms: Autonomous, powerful, free, self-reliant, self-dependent, self-supporting, self-sustaining, strong, potent, resilient.

Example: She liked to be independent and even taught her kids to live independently.

Individual

Definition: Like a person.

Synonyms: Man, guy, human, creature, soul, customer, being, body, personality, character, sort, specimen, human being, personage, scout, stiff, slob, celebrity, humanoid.

Example: Every individual living there had to fill out the form.

Indomitable

Definition: To be incapable of being defeated.

Synonyms: Unconquerable, unstoppable, invincible, insurmountable, unbeatable, invulnerable, armored, undefeated, impregnable, insurmountable, inviolable, protected, unbowed, guarded, defended, unconquered, shielded, secure, safe.

Example: He was considered indomitable in the game of chess.

Indulge

Definition: To be a part of a whole.

Synonyms: Involve, encompass, contain, entail, carry, comprise, subsume, number, embrace, incorporate, comprehend, receive, have, possess, own, constitute, embody, integrate, admit, form, hold, compose, make, assimilate.

Example: Her parents made sure she didn’t indulge in any kind of bad habits.

Ineffable

Definition: To have power beyond description.

Synonyms: Indescribable, incredible, inexpressible, unspeakable, indefinable, unutterable, incommunicable, unexplainable, inconceivable, inexplicable, unbelievable, unimaginable, nameless, unsayable, unthinkable.

Example: An ineffable beauty descends as soon as the sun sets.

Related: Positive Words Starting With A

Infallible

Definition: To not be wrong.

Synonyms: Unerring, perfect, reliable, flawless, unfailing, foolproof, inerrant, faultless, impeccable, dependable, errorless, sure, certain.

Example: Her mother was an amazing person with an ineffable memory of all her friends.

Infinite

Definition: Anything that is without any limits.

Synonyms: Endless, limitless, boundless, unlimited, vast, immeasurable, measureless, fathomless, unbounded, illimitable, unfathomable, immense, indefinite, inexhaustible, incomputable.

Example: There were infinite ways to cure the disease.

Influential

Definition: To have the power of another person’s mind and behavior.

Synonyms: Authoritative, important, dominant, dominating, forceful, predominant, eminent, cogent, controlling, weighty, masterful, supreme, momentous, sovereign, regnant.

Example: He’s an influential person to be friends with.

Ingenious

Definition: To have the skill and imagination to create something new.

Synonyms: Inventive, innovative, creative, imaginative, innovational, talented, clever, original, gifted, innovatory, prolific, inspired, resourceful, generative, fertile, fruitful, germinal, productive.

Example: He has an ingenious way of creating something completely amazing.

Initiative

Definition: To engage in a daring activity.

Synonyms: Ambition, action, enterprise, drive, spirit, vigor, aggressiveness, hustle, gumption, spunk, pep, vitality, pluck, starch, self-reliant, snap.

Example: She took the initiative to find her friend.

Innocent

Definition: To be free from sin or any bad doings.

Synonyms: Pure, white, honorable, righteous, chaste, sinless, honest, immaculate, virtuous, moral, ethical, good, guiltless, unblemished, blameless, upright, unsullied.

Example: He looked innocent but hid his real face behind the mask.

Innovation

Definition: To create something using imagination.

Synonyms: Invention, creation, product, design, concoction, work, device, coinage, conception, wrinkle, contrivance, brainchild, contraption, imagining, gizmo, novelty.

Example: Schools are supposed to guide students to find innovative ways to create something.

Insight

Definition: To be able to understand inner qualities.

Synonyms: Wisdom, understanding, sensitivity, perception, perceptivity, perceptiveness, discernment, intellect, intelligence, sagacity, sense, brilliance, wit, appreciation, acumen, comprehension, perspicacity, grasp, penetration.

Example: He was a retired therapist with an insight into people’s personalities but was still there for his patients.

Insightful

Definition: To be able to understand inner qualities.

Synonyms: Wisdom, understanding, sensitivity, perception, perceptivity, perceptiveness, discernment, intellect, intelligence, sagacity, sense, brilliance, wit, appreciation, acumen, comprehension, perspicacity, grasp, penetration.

Example: It was an insightful speech at the center.

Inspire

Definition: To fill a purpose.

Synonyms: Encourage, embolden, stimulate, hearten, inspire, reinforce, provoke, invigorate, enliven, steel, reassure, animate, strength, galvanize, assure, enforce, fortify, rally, stir, reinforce.

Example: He inspired people with his story.

Integrate

Definition: To be a part of a body.

Synonyms: Incorporate, assimilate, embody, combine, absorb, merge, blend, intermingle, acculturate, habituate, accustom, fuse, naturalization.

Example: She tried to integrate all of her studies and information to build a new project.

Integrity

Definition: Something that conforms to right or wrong.

Synonyms: Morality, honesty, virtue, goodness, ethics, rightness, decency, morals, uprightness, correctness, appropriateness, propriety, etiquette.

Example: Everyone said that she was a woman of integrity as she took full responsibility for her actions.

Intelligent

Definition: To be able to understand inner qualities.

Synonyms: Wisdom, understanding, sensitivity, perception, perceptivity, perceptiveness, discernment, intellect, intelligence, sagacity, sense, brilliance, wit, appreciation, acumen, comprehension, perspicacity, grasp, penetration.

Example: The teacher chose the most intelligent student for an international quiz competition.

Related: Positive Words Starting With J

Intimate

Definition: To be close to someone.

Synonyms: Close, familiar, friendly, chummy, comfortable, inseparable, bosom, tight, inward, affectionate, convivial, especial, near, social, loving, companionable, confidential, secretive, affable, cordial, gracious, adoring, boon, hearty, tender, snug, devoted, fond, tenderhearted.

Example: They looked pretty intimate to be just friends.

Intoxicating

Definition: Something that causes great emotional disturbance.

Synonyms: Breathtaking, exciting, thrilling, intriguing, electrifying, inspiring, gripping, electric, galvanizing, provocative, tantalizing, galvanic, enchanting, absorbing, enthralling, stirring, exhilarating, lively, arresting, moving, touching, dynamic, kinetic, lusty.

Example: His scent was quite intoxicating to her senses.

Inventive

Definition: To create something using imagination.

Synonyms: Invention, creation, product, design, concoction, work, device, coinage, conception, wrinkle, contrivance, brainchild, contraption, imagining, gizmo, novelty.

Example: His job is to invent cool, adventurous, and good games.

Invigorate

Definition: To give life to something.

Synonyms: Stimulate, energize, enliven, arouse, awaken, animate, excite, stir, vivify, inspire, provoke, quicken, revive, strengthen, activate, motivate, cheer, rouse, spark.

Example: He tried to invigorate life into his painting but failed to do so.

Invincible

Definition: Someone who cannot be defeated.

Synonyms: Invulnerable, unstoppable, unconquered, indomitable, impregnable, armored, undefeated, untouchable, inviolable, unreachable, safeguard, secure, unbowed, safe.

Example: He was shown to be invincible in the movie.

Inviting

Definition: Someone who looks attractive.

Synonyms: Alluring, tempting, welcome, pleasing, congenial, delightful, agreeable, enjoyable, delicious, satisfying, charming, dreamy, pretty, jolly, pleasurable, palatable, enchanting, heavenly, darling, felicitous, fascinating, admirable, blest, amiable, estimable, genial.

Example: She respectfully denied his invitation to the ball.

Irresistible

Definition: When it is impossible to resist because of its attractiveness.

Synonyms: Overwhelming, infectious, overpowering, epidemic, tangible, contagious, spreading, perceptible, inviting, catching, palpable, endearing, winning.

Example: The chicken on the table was irresistible.

Icy

Definition: A temperature that is very cold.

Synonyms: Frigid, freezing, chilly, chill, cool, arctic, frosty, glacial, wintry, polar, shivery, bitter, wintery, cooled, brisk, nipping, crisp, frozen, cryogenic, snappy, piercing.

Example: The temperature was way too icy for us to go out.

Identical

Definition: Something that resembles another.

Synonyms: Similar, same, very, self-same, comparable, equivalent, duplicate, indistinguishable, equal, coequal, matching, synonyms, parallel, such, even, like, alike, correspondent.

Example: The twins looked nowhere near identical.

Idiotic

Definition: To be unable to understand or make sensible choices.

Synonyms: Dumb, ridiculous, irrational, ignorant, unreasonable, moronic, stupid, unreasoning, fatuous, imbecile, absurd, thoughtless, simple, silly, clueless, illogical, obtuse, dopey, unintelligent, witless, ludicrous, oafish, unreasoned, insane, opaque, airheaded, dull, unsound, dim, surd.

Example: Her friends stopped talking to her after she blabbed some idiotic things.

Ignorant

Definition: To lack knowledge.

Synonyms: Uneducated, dark, illiterate, inexperienced, benighted, untutored, unschooled, untaught, simple, rude, naive, dumb, moronic, imbecile, artless, innumerate, philistine, witless.

Example: She was acting ignorant, but everyone knew that she cared.

Ill

Definition: To be sick.

Synonyms: Sickish, nauseous, queasy, upset, nauseated, qualmish, unsettled, queasy, sickly, queerish, queer, peaky, peaked.

Example: She hadn’t been to school for a week as she was ill.

Illegal

Definition: Something that is not legal according to the law.

Synonyms: Unlawful, illicit, criminal, felonious, unauthorized, wrongful, forbidden, illegitimate, criminalized, prohibited, immoral, outlawed, banned, evil, unlicensed, bad, proscribed, corrupt, interdicted, barred, bootleg, unscrupulous, censurable, blameworthy, blamable, unprincipled. 

Example: It was illegal to sell drugs.

Illogical

Definition: Something that has no good reason.

Synonyms: Irrational, unreasonable, unreasoning, absurd, illegitimate, misleading, weak, inconsequent, fallacious, weird, meaningless, inconsistent, unusual, misguided, asinine, sophistical, random, inexplicable, senseless, disorganized, wacky, reasonless, peculiar, rambling.

Example: He gave a few illogical reasons as to why he didn’t attend school.

Imaginary

Definition: Something that is not real and only exists in one’s imagination.

Synonyms: Fictitious, fictional, mythical, mythic, fantasied, imagined, phantom, unreal, notional, invented, pretend, phantasmic, visionary, fabulous, chimeric, theoretic, unlikely, illusory, visualized, delusional, deceptive, envisioned, deceptive, fabricated, feigned, inexistent.

Example: Her parents were worried that their daughter seemed to be talking to an imaginary friend.

Immoral

Definition: Something that is not legal according to the law.

Synonyms: Unlawful, illicit, criminal, felonious, unauthorized, wrongful, forbidden, illegitimate, criminalized, prohibited, immoral, outlawed, banned, evil, unlicensed, bad, proscribed, corrupt, interdicted, barred, bootleg, unscrupulous, censurable, blameworthy, blamable, unprincipled. 

Example: They considered selling illegal things to students or anyone else as immoral.

Immune

Definition: To not be subject to something where others are required.

Synonyms: Exempt, protected, shielded, secure, privileged, pure, invincible, inviolate, invulnerable, inviolable, untouchable, sacred.

Example: She seemed to be immune to the new virus.

Related: Positive Words Starting With C

Impassible

Definition: To not show any emotion.

Synonyms: Stoic, impassive, calm, bland, passionless, emotionless, enigmatic, numb, stolid, apathetic, detached, unemotional, empty, dry, stoical, reserved, cold, unmoved, imperturbable, collected, unflappable, composed, blank, impenetrable, inscrutable, inexpressive, taciturn, vacant, objective, indifferent, inconsiderate.

Example: Years of being mentally and physically abused had rendered her impassible. 

Impatient

Definition: To desire something without being patient.

Synonyms: Excited, eager, anxious, avid, enthusiastic, hungry, ardent, antsy, keen, greedy, thirsty, interested, happy, solicitous, voracious, raring, willing, obsessed, restless, craving, restive, hankering, amenable.

Example: She was impatient and was getting jiggly long before her results were announced.

Imperfect

Definition: To have flaws.

Synonyms: Defective, flaw, bad, broken, damaged, incomplete, faulty, inadequate, amiss, fallible, insufficient, marred, spoiled, impaired, hurt, crippled, blemished, vitiated, injured, deficient, defaced.

Example: Finding someone who loves your imperfections is very rare and hard to find.

Imported

Definition: To be important.

Synonyms: Significance, consequence, magnitude, value, gravity, magnitude, store, substance, weightless, control, status, celebrity, prominence, eminence, report, potency, substantiveness, distinction, dominion, worthiness, sway, note, mastery, renown, mark, repute, glory, cachet, honor, essentialness.

Example: She made sure to overemphasize the impact of these medical tests on her future health.

Impregnate

Definition: To soak wet.

Synonyms: Saturate, drown, drench, macerate, submerge, immerse, sodden, souse, wash, sop, penetrate, dip, steep, marinate, infiltrate, water, inundate, moisten, bathe, hydrate, swamp, douse, swill, damp, dampen.

Example: She impregnated the cloth with water and rubbed her disabled mother’s body with it.

Impressive

Definition: To be able to affect one’s feelings.

Synonyms: Emotional, exciting, impactful, inspirational, dramatic, excitable, poignant, affecting, touching, passionate, eloquent, moving, meaningful, stirring, expressive, significant, theatrical, demonstrative, feeling, responsive, stimulating, provoking, sensitive, cathartic.

Example: Her acting impressed the director, and she was immediately cast as the main lead.

Improper

Definition: Something that is inappropriate for an occasion or a situation.

Synonyms: Incorrect, unsuitable, wrong, unfit, unhappy, irrelevant, unseemly, unfortunate, indecorous, incongruous, inconsistent, unapt, awkward, graceless, amiss, untimely, inapposite, extraneous, incompatible.

Example: She dressed in an improper way for an interview.

Imprudent

Definition: To give poor judgment in personal or social situations.

Synonyms: Unwise, improper, injudicious, inappropriate, inadvisable, careless, indiscreet, stupid, tactless, indelicate, undiplomatic, foolish, idiotic, silly, dumb, indecorous, nonsensical.

Example: Her friend was so imprudent that no one trusted her with secrets.

Impulsive

Definition: To do something that is on the mind without thinking.

Synonyms: Obsessive, compulsive, spontaneous, driven, obsessional, instinctive, automatic, uncontrollable, unpredictable, reflexive, unconscious, mechanical, whimsical, involuntary, conditioned, unwitting.

Example: Her impulsive decisions often caused her so many problems.

Inaudible

Definition: When something is not heard.

Synonyms: Invisible, silent, faint, imperceptible, indistinct, intangible, unseen, indistinguishable, hushed, inconspicuous, unnoticeable, buried, quiet, impalpable, insignificant, subtle, vague, hidden, trivial, unseeable, insensible, obscure, slight, disguised, slender, liminal, concealed.

Example: Her voice was inaudible in the club.

Incandescent

Definition: To give off light.

Synonyms: Glowing, luminous, shining, dazzling, radiant, candescent, flickering, bright, shimmering, lambent, glittering, blazing, flashing, shiny, gleaming, brilliant, refulgent, burning, lucid, blinding, fiery, splendid, polished, twinkling, combusting, ablaze, glancing, agleam, gemmy, coruscant.

Example: The incandescent surface seemed to give off so much light that it was impossible for anyone to see.

Inch

Definition: Distance or degree.

Synonyms: Step, neck, bit, hairbreadth, ace, smidgen, iota, particle, jot, minim.

Example: She cut off an inch of her hair by herself.

Incomplete

Definition: Something that is unfinished.

Synonyms: Deficient, partial, fragmentary, flawed, fragmental, imperfect, damaged, half, halfway, marred, injured, spoiled, impaired, broken, sketchy.

Example: Her homework was incomplete most of the time.

Inconceivable

Definition: Something that is too extraordinary to believe.

Synonyms: Incredulous, unbelievable, impossible, unlikely, unimaginable, inconceivable, unthinkable, fantastical, absurd, implausible, questionable, unreasonable, dubious, silly, uncompelling, hopeless, shaky, suspicious, suspect, debatable.

Example: It was almost inconceivable to believe her stories, but slowly it made sense.

Indent

Definition: An edge that is cut in a v shape.

Synonyms: Indentation, chip, slit, groove, slot, kerf, hack, indenture, nick, punch, notch, undercut, nock, score, snip.

Example: An indent in the dirt was an important clue that the detective observed as to where the murderer ran off to.

Indigenous

Definition: To belong to a place by birth.

Synonyms: Aboriginal, native, local, autochthonous, endemic, domestic, regional, born, original.

Example: She loved and learned more about the culture from the indigenous people of that place.

Inexpensive

Definition: An object that costs very little.

Synonyms: Cheap, affordable, reasonable, popular, low, cheapie, cheapo, budget, cheapish, discounted, reduced, moderate, wholesale, lowered, valueless, ultracheap, super cheap.

Example: The house was a little inexpensive when it came to its beautiful architecture.

Infamous

Definition: To not be respectful.

Synonyms: Notorious, shady, criminal, immoral, disgraceful, shameful, ignominious, disreputable, shoddy, discreditable, louche, shy, vicious, dirty, wicked, sordid, seamy, unethical, despicable, detestable, wrong, wretched, depraved, libertine, dissolute.

Example: She was the infamous actress whom everyone had heard of.

Inferior

Definition: Of a lower rank or quality.

Synonyms: Subordinate, junior, underling, minion, henchman, assistant, menial, domestic, sidekick, second, follower, steward, adjutant, retainer, mate.

Example: The superiors respected all their inferiors the same as any others.

Infernal

Definition: To deserve one’s displeasure.

Synonyms: Freaking, cursed, damnable, awful, terrible, accursed, blasted, wretched, rotten, dang, accursed, pitiful, cussed, abominable, detestable, durn, vile, execrable, odious, punk, despicable.

Example: He said a few harsh words to the infernal man who spilled coffee all over him.

Informal

Definition: To not follow any rules or customs.

Synonyms: Unconventional, unofficial, casual, irregular, unorthodox, relaxed, offhand, easygoing, familiar, free, and easy.

Example: She dressed in an informal way for the interview.

Related: Positive Words Starting From D

Insane

Definition: To show an abnormal state of mind.

Synonyms: Psychotic, lunatic, mad, nuts, crazy, maniac, mental, crazed, psycho, bonkers, deranged, irrational, disturbed, demented, irrational, strange, wacko, loony, daft, screwy, unbalanced, cracked, unreasonable, obsessed, frantic.

Example: She was acting insane after the accident.

Insolent

Definition: To display rudeness.

Synonyms: Impudent, brazen, wise, cocky, impertinent, defiant, saucy, cheeky, sassy, bold, blunt, brash, brassy, shameless, disrespectful, flippant, forward, bluff, mouthy.

Example: She replied in an insolent way to the student’s request.

Intangible

Definition: To not be able to be perceived by touch.

Synonyms: Incorporeal, impalpable, immaterial, spiritual, unreal, insubstantial, ethereal, bodiless, unsubstantial.

Example: All kinds of energy are completely intangible.

Integral

Definition: To be part of the innermost nature.

Synonyms: Intrinsic, inherent, essential, natural, constitutive, constitutional, inner, distinctive, ingrained, inborn, inmost, regular, normal, characteristic, native, typical, engrained, habitual.

Example: The boss respected him for his integral honesty with his partners.

Interesting

Definition: To hold one’s attention for a long time.

Synonyms: Intrigue, fascinating, engaging, exciting, absorbing, provocative, amusing, entertaining, inspiring, riveting, involving, amazing, consuming, immersing, enchanting, exhilarating, stimulating, electrifying, astonishing, captivating, wonderful, galvanizing, mesmerizing, eventful, rousing.

Example: The movie started off interesting but slowly got boring.

Internal

Definition: To be part of the innermost nature.

Synonyms: Intrinsic, inherent, essential, natural, constitutive, constitutional, inner, distinctive, ingrained, inborn, inmost, regular, normal, characteristic, native, typical, engrained, habitual.

Example: Her internal organs were failing one by one, slowly.

Invisible

Definition: To not be seen.

Synonyms: Unnoticed, discreet, unseen, inconspicuous, unobtrusive, unnoticeable, hidden, imperceptible, indistinct, indistinguishable, unremarked, inappreciable, insensible.

Example: She could become invisible by just imagining.

Irate

Definition: To show anger.

Synonyms: Angry, enraged, indignant, infuriated, outraged, angered, furious, mad, infuriate, ballistic, incensed, annoyed, fuming, rabid, apoplectic, riled, irritable, wrathful, inflamed, steaming, foaming, roiled, aggravated, steamed up, vengeful, ranting.

Example: She only irritated him by speaking out of turn.

Ironclad

Definition: To be powerful.

Synonyms: Unyielding, powerful, mighty, iron, solid, sturdy, robust, tough, vigorous, forceful, strong, stout, firm, hearty, lusty, hard, animated, spirited, confident, vivacious, certain, lively, perky, frisky, energetic, sprightly, springy, certain.

Example: His character was ironclad and amazing in the movie.

Ironic

Definition: To be marked by a negative form of wit in which words are used to give off completely different meanings.

Synonyms: Cynical, acidic, acid, wry, poignant, sarcastic, satiric, sardonic, dry, caustic, flippant, sour, satirical, snarky, trenchant, acerbic, incisive, mordant, pungent, acrid, brisk, barbed, sourish, biting, tartish, acrimonious, keen, severe, sharp, rough.

Example: It is ironic that she landed in a place that she said was her least favorite.

Irrelevant

Definition: Something that has no meaning.

Synonyms: Meaningless, immaterial, inapplicable, useless, extraneous, inappropriate, irrelative, impertinent, unimportant, tangential, insignificant, inconsequential, pointless, incidental, dead, empty, senseless, inapt.

Example: It was irrelevant for her to make the issue big by involving her parents.

Irritating

Definition: To be annoying.

Synonyms: Annoying, frustrating, disturbing, aggravating, exasperating, maddening, bothersome, vexing, abrasive, painful, chafing, rebarbative, pesty, plaguey, pestiferous, rankling, infuriating, troubling, enraging, displeasing, inconveniencing, tiresome, mischievous, biting, offensive, bratty, grating, thorny, spiny.

Example: The noise from the neighbors was irritating and disturbing.

Idealistic

Definition: To be marked by a tendency to be guided more by ideals than reality.

Synonyms: Theoretical, theoretic, metaphysical, abstract, conceptual, intellectual, mental, hypothetical, spiritual, speculative, ideational, notional, impractical, invisible, cosmic, romantic, immaterial, visionary, impalpable, insensible.

Example: His idealistic ways of approaching life were not often liked by the people around him.

Idealized

Definition: To be marked by a tendency to be guided more by ideals than reality.

Synonyms: Theoretical, theoretic, metaphysical, abstract, conceptual, intellectual, mental, hypothetical, spiritual, speculative, ideational, notional, impractical, invisible, cosmic, romantic, immaterial, visionary, impalpable, insensible.

Example: His life was idealized by all his devotees.

Identified

Definition: To be seen or noticed.

Synonyms: Discovered, noticed, detected, crowded, swarming, bustling, traveled, thronging.

Example: He was identified by his neighbor and caught by the cops. 

Ideologic

Definition: To relate to a set of beliefs and ideals.

Synonyms: Philosophical, theoretical, opinionative, conceptual, theoretic, ideational, metaphysical, dogmatic, abstract, notional, idealist, ideal, idealist, quixotic, rigid, nonrealistic, visionary, impractical, unrealistic, adamant, unbending, mulish, adamantine, perverse, inflexible, headstrong.

Example: Both groups made peace despite all their ideological differences.

Ideological

Definition: To relate to a set of beliefs and ideals.

Synonyms: Philosophical, theoretical, opinionative, conceptual, theoretic, ideational, metaphysical, dogmatic, abstract, notional, idealist, ideal, idealist, quixotic, rigid, nonrealistic, visionary, impractical, unrealistic, adamant, unbending, mulish, adamantine, perverse, inflexible, headstrong.

Example: The hero and the villain settled on a deal despite their ideological differences.

Idle

Definition: To not do any work.

Synonyms: Dormant, off, unused, vacant, inactive, dead, inert, inoperative, fallow, latent, free, asleep, interrupted, unoccupied, quiescent, suspended, slow, lifeless, arrested, abeyant, inoperable.

Example: He was idle for years and has only now started to plan for his business.

Idolized

Definition: To admire or love someone.

Synonyms: Adored, worshipped, revered, deified, adulated, liked, cherished, respected, valued, venerated, treasured, favored, appreciated, preferred, esteemed, endorsed, approved, supported, endorsed.

Example: He was idolized way more than he had to be.

Related: Positive Words Starting From B

Illiterate

Definition: To lack education or knowledge.

Synonyms: Ignorant, uneducated, unschooled, inexperienced, untutored, nonliterate, dark, unlearned, simple, semi-literate, unread, rude, naive, innocent, unknowledgeable, unsophisticated, foolish, artless, uncultivated, untrained, green, witless, silly, senseless,

Example: She was illiterate, but no one could match her maturity.

Illusional

Definition: An image created by imagination.

Synonyms: Dream, fantasy, delusion, daydream, vision, unreality, idea, mirage, figment, nonentity, fabrication, concoction, fable, invention, daymare.

Example: Everyone thought she was being illusionary when she was talking about unicorns.

Impressionable

Definition: Someone who is easy to influence.

Synonyms: Inexperienced, naive, innovative, unsophisticated, vulnerable, genuine, sincere, childlike, persuadable, malleable, unworldly, gullible, guileless, naive, unwary, unpretentious, honest, exploitable, simple, pursuable, true, unpretending, trusting, gullible, trusting, trustful.

Example: It was easy to act impressionable in front of people.

Impressionist

Definition: Someone who is easy to influence.

Synonyms: Inexperienced, naive, innovative, unsophisticated, vulnerable, genuine, sincere, childlike, persuadable, malleable, unworldly, gullible, guileless, naive, unwary, unpretentious, honest, exploitable, simple, pursuable, true, unpretending, trusting, gullible, trusting, trustful.

Example: She was an active impressionist when it came to politics or any kind of social issue.

Imprisoned

Definition: To be held in prison. 

Synonyms: Jailed, arrested, captured, incarcerated, interned, captured, confined, kidnapped, apprehended, enslaved, caught, trapped, abducted, bound, indentured, occupied, ensnared, subjugated, subdued.

Example: He was imprisoned for the recent robbery he committed.

Impromptu

Definition: To do something without thought.

Synonyms: Spontaneous, extemporaneous, unrehearsed, extemporary, unplanned, unprepared, informal, automatic, unstudied, snap, unconsidered, impulsive, casual, involuntary, cursive.

Example: He made an impromptu decision that led to further complications.

Improvised

Definition: To do something without thought.

Synonyms: Spontaneous, extemporaneous, unrehearsed, extemporary, unplanned, unprepared, informal, automatic, unstudied, snap, unconsidered, impulsive, casual, involuntary, cursive.

Example: He improvised his character and was appreciated by his director.

Impure

Definition: To contain many substances.

Synonyms: Polluted, contaminated, diluted, adulterated, tainted, thinned, alloyed, mixed, defiled, soiled, weakened, debased, dirtied, corrupted, combined, unfiltered, sullied, unrefined, combined, spoiled, intermixed, commingled, unclarified, fouled, intermixed, compounded, intermixed, maculated, merged, doctored.

Example: The water was impure and not drinkable.

In

Definition: To approach.

Synonyms: Close, near, nearby, by, around, within call, at hand, alongside, hereabouts, thereabouts, hereabouts, handily, accessibly.

Example: The soldiers closed in on the opponent slowly and strategically.

Inaccessible

Definition: Something that is impossible to get.

Synonyms: Unavailable, unreachable, untouchable, unobtainable, unapproachable, hidden, removed, isolated, far, inconvenient, unattainable, secluded, distant, away, remote, apart.

Example: His files were inaccessible to other people.

Inaccurate

Definition: To not be true.

Synonyms: Erroneous, incorrect, wrong, false, misleading, untrue, inexact, untruthful, distorted, invalid, unsound, deceptive, fraudulent, specious, fictitious, spurious, illusory, mendacious, fallacious.

Example: His results were inaccurate, which could lead to many accidents if applied.

Inactive

Definition: To not do any work.

Synonyms: Dormant, off, unused, vacant, inactive, dead, inert, inoperative, fallow, latent, free, asleep, interrupted, unoccupied, quiescent, suspended, slow, lifeless, arrested, abeyant, inoperable.

Example: His phone was inactive for days before he went missing.

Inhabitable

Definition: Somewhere that is suitable to live in.

Synonyms: Habitable, livable, comfortable, livable, acceptable, intimate, sustainable, rich, homelike, luxurious, homey, endurable, deluxe, cozy, sumptuous, palatial, homey, tolerable, bearable, plush, luxuriant, opulent, snug, lavish, sufferable, supportable.

Example: The new place that they recently discovered was inhabitable.

Inhabited

Definition: Somewhere that is suitable to live in.

Synonyms: Habitable, livable, comfortable, livable, acceptable, intimate, sustainable, rich, homelike, luxurious, homey, endurable, deluxe, cozy, sumptuous, palatial, homey, tolerable, bearable, plush, luxuriant, opulent, snug, lavish, sufferable, supportable.

Example: The unknown place was already inhabited by someone else.

Inheritable

Definition: What is genetically passed down from parents to offspring.

Synonyms: Genetic, hereditary, heritable, inherent, genetic, inborn, inbred, congenital, innate, inbred, native, natural, innate.

Example: Their property was inheritable from his great-grandparents.

Inherited

Definition: This is genetically passed from the parent to their offspring.

Synonyms: Genetic, hereditary, heritable, inherent, genetic, inborn, inbred, congenital, innate, inbred, native, natural, innate.

Example: He denied his inherited property as he was not their biological son.

Inhibited

Definition: To create difficulty for the work.

Synonyms: Impede, hinder, hamper, obstruct, embarrass, stymie, handicap, restrain, block, delay, disrupt, constrain, hobble, fetter.

Example: His cousin inhibited him from getting his work done that evening.

Inhospitable

Definition: Marked by ill will.

Synonyms: Hostile, negative, unfriendly, contentious, unpleasant, adverse, inimical, unsympathetic, antipathetic, adversarial, mortal, disagreeable, jaundiced, contrary, conflicting, distant, rude, antisocial, malicious, unkind.

Example: The guests were treated in a very inhospitable way.

Inhuman

Definition: Something that is hard to endure.

Synonyms: Oppressive, harsh, brutal, tough, searing, severe, hard, grim, trying, painful, onerous, heavy, burdensome, bleak, grievous, bitter, rugged, unbearable, unpleasant.

Example: It was inhuman for anyone to live in a place without proper food and water.

Related: Positive Words Starting From M

Initial

Definition: To come before.

Synonyms: First, original, inaugural, earliest, previous, maiden, foremost, early, pioneer, premier, primary, preceding, headmost, primordial, prime, primeval, ancient, virgin.

Example: They initially planned to trap them but failed, so they moved on to plan B.

Injectable

Definition: To put in or between others.

Synonyms: Insert, introduce, add, intersperse, interpolate, interpose, install, weave, thrust, wedge, attach, append, inlay, cram, interline.

Example: He injected the vaccine, which worked, and made sure it killed the virus in the body.

Inner

Definition: Something that is situated farther in.

Synonyms: Interior, internal, inside, inward, middle, central, mid, midmost, inmost.

Example: The inner part of the cake was completely made of chocolate.

Innermost

Definition: Something that is situated farther in.

Synonyms: Interior, internal, inside, inward, middle, central, mid, midmost, inmost.

Example: The innermost layer of the locker was very hard to break into.

Informed

Definition: Reasoning or information.

Synonyms: Reasoned, logical, reasonable, valid, sensible, good, rational, justified, solid, firm, validated, commonsense, plausible, level-headed, commonsense, actual, real, credible,

Example: He was previously informed that if he was involved in any illegal activities, he would be suspended from school.

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