GRE Words Starting With I

79 words found

iconoclast

noun

A person who attacks or criticizes cherished beliefs or institutions

idealistic

adjective

Characterized by idealism; unrealistically aiming for perfection

idiosyncrasy

noun

A peculiar habit, mannerism, or characteristic that is distinctive to an individual or group

idolatry

noun

excessive or blind devotion to someone or something

illicit

adjective

Forbidden by law, rules, or custom; illegal

illusion

noun

A false idea or belief; a deceptive appearance

imminent

adjective

About to happen; impending

immutable

adjective

Unchanging over time or unable to be changed

impair

verb

to weaken or damage, especially in function

impartial

adjective

Treating all rivals or disputants equally; fair and just

impassive

adjective

showing no emotion or expression

impecunious

adjective

having little or no money; penniless

impede

verb

to obstruct or hinder progress

imperious

adjective

Assuming power or authority without justification; domineering

imperturbable

adjective

unable to be upset or agitated; calm

impervious

adjective

incapable of being affected or penetrated

impetuous

adjective

Acting or done quickly and without thought or care

impetus

noun

The force or energy with which a body moves; a driving force

implacable

adjective

unable to be appeased or pacified; relentless

implicit

adjective

Suggested though not directly expressed; understood but not stated

implode

verb

to collapse violently inward

inadvertent

adjective

Not resulting from or achieved through deliberate planning

inarticulate

adjective

Unable to speak distinctly or express oneself clearly

inchoate

adjective

Just begun; not fully formed or developed

incipient

adjective

In an initial stage; beginning to happen or develop

incoherent

adjective

Expressed in an incomprehensible or confusing way; unclear

incompetent

adjective

Not having or showing the necessary skills to do something successfully

inconsequential

adjective

of little importance; trivial

incorrigible

adjective

incapable of being corrected or reformed

incredulous

adjective

Unwilling or unable to believe something

inculpate

verb

To accuse or incriminate someone; to show or suggest that someone is guilty of wrongdoing

indefatigable

adjective

Persisting tirelessly; unable to be fatigued

indelible

adjective

Making marks that cannot be removed; unforgettable

indeterminate

adjective

Not exactly known, established, or defined; vague

indifferent

adjective

Having no particular interest or sympathy; mediocre

indigence

noun

extreme poverty

indignation

noun

Anger or annoyance provoked by what is perceived as unfair treatment

indisputable

adjective

Unable to be challenged or denied; unquestionable

indolent

adjective

Wanting to avoid activity or exertion; lazy

industrious

adjective

Diligent and hard-working

ineffable

adjective

too great or extreme to be expressed in words

inept

adjective

Having or showing no skill; clumsy

inert

adjective

lacking the power to move or act; sluggish or chemically inactive

ingenious

adjective

Clever, original, and inventive

ingenuous

adjective

Innocent and unsuspecting; candid and sincere

ingratiating

adjective

Intended to gain approval or favor; sycophantic

inherent

adjective

Existing in something as a permanent, essential, or characteristic attribute

inimical

adjective

Tending to obstruct or harm; unfriendly; hostile

injudicious

adjective

Showing very poor judgment; unwise

injurious

adjective

Causing or likely to cause damage or harm

innate

adjective

Inborn; natural; existing from birth

innocuous

adjective

Harmless and unlikely to cause offense or injury

innovative

adjective

Featuring new methods; advanced and original

insensible

adjective

unaware, unconscious, or incapable of feeling

insidious

adjective

Proceeding in a gradual, subtle way with harmful effects

insinuate

verb

to hint or suggest indirectly, usually something unpleasant

insipid

adjective

Lacking flavor, zest, or interest; dull and unengaging

insolent

adjective

boldly rude and disrespectful

insufficient

adjective

Not enough; inadequate

insularity

noun

narrow-mindedness resulting from isolation

insure

verb

To arrange for compensation in case of damage or loss; to make certain

insurgent

adjective

rising in active revolt against authority

intangible

adjective

Unable to be touched or grasped; not having physical presence

integrated

adjective

With various parts or aspects linked or coordinated

intermittent

adjective

Occurring at irregular intervals; not continuous or steady

intractable

adjective

difficult to manage, control, or solve

intransigent

adjective

Unwilling or refusing to change one's views or agree; uncompromising

intrepid

adjective

fearless and resolutely courageous

intrinsic

adjective

Belonging naturally; essential; inherent

inundate

verb

To overwhelm with things or people to be dealt with

inundation

noun

An overwhelming abundance; a flood

invective

noun

Insulting, abusive, or highly critical language

inveterate

adjective

firmly established by long habit and unlikely to change

invigorate

verb

To give strength or energy to

involved

adjective

Complicated or difficult to understand; intricate

irascible

adjective

easily angered; quick-tempered

irrefutable

adjective

Impossible to deny or disprove

irresolute

adjective

unable to decide; hesitant and wavering

itinerant

adjective

Traveling from place to place

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