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impartial (adj) : not favoring anyone; without prejudice
impasse (n) : a deadlock, a road with no exit
implacable (adj) : unable to be eased or appeased
imply (v) : to suggest without saying so directly
improvident (adj) : failing to provide for the future; incautious
incongruous (adj) : lacking harmony or agreement, or being absurd
indelible (adj) : permanent, lasting or unforgettable
indolence (n) : disliking or avoiding work; idleness, laziness
indomitable (adj) : not easily defeated or discouraged, or invincible
ineluctable (adj) : inescapable, something that can't be avoided
inevitable (adj) : that which cannot be avoided, certain to happen
innate (adj) : existing naturally, often from birth
innovate (v) : to introduce new methods, devices, systems, etc
inscrutable (adj) : difficult to understand, unreadable
insular (adj) : narrow-minded
intractable (adj) : hard to manage or stubborn
inured (adj) : being used to something difficult or painful
invective (n) : an insult or sharp and nasty criticism
inveigle (v) : to persuade someone with kind words, to flatter to get something you want
invidious (adj) : extremely unpleasant or offensive
invigorate (v) : to fill with energy or to enliven
inviolable (adj) : secure from harm, safe from danger, or something that can't be crossed
invocation (n) : request to god or spirit for help or protection
invulnerable (adj) : very secure, something that can't be hurt
iota (n) : a very small amount, extremely small quantity
irascible (adj) : easily angered or quick-tempered
irreverence (n) : disrespect
itinerant (adj) : traveling around or migrant
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
GRE and SAT Vocabulary Words