100 SAT Words Beginning with “I”

iconoclast

idealistic

ideological

idiom

idiosyncrasy

idle

idyllic

ignominious

illustrious

imbibe

imbroglio

imminent

impaired

impartial

impasse

impecunious

impediment

impending

imperative

imperceptible

imperious

impetuous

implicit

implode

implore

imply

impregnable

impromptu

impudence

impunity

inalienable

inane

inanimate

inaugurate

incarnation

incendiary

inception

inchoate

incipient

incite

inclement

incognito

incompetent

inconspicuous

incorrigible

incredulous

increment

incumbent

indelible

indemnity

indenture

indifferent

indigenous

indigent

indignant

indomitable

ineffable

inevitable

inexorable

infamous

infinitesimal

infirmity

inflammatory

infringe

ingratiate

inherent

iniquity

innate

innocuous

innovative

innuendo

insatiable

inscrutable

insidious

insolent

insolvent

insouciant

insubordination

insular

insuperable

insurgent

insurrection

intact

intangible

inter

interdict

interim

interject

interloper

interminable

intimation

intransigent

intrepid

intrinsic

introspective

inundated

inverse

irrelevant

irreverent

itinerant