Mastering “Word Roots” for SAT Success

IN, IG, IL, IM, IR – not

 

incorrigible

indefatigable

indelible

indubitable

 

inept

inert

inexorable

insatiable

 

insentient

insolvent

insomnia

interminable

 

intractable

incessant

inextricable

infallible

 

infamy

innumerable

inoperable

insipid

 

intemperate

intrepid

inviolable

ignorant

 

ignominious

ignoble

illicit

illimitable

 

immaculate

immutable

impasse

impeccable

 

impecunious

impertinent

implacable

impotent

 

impregnable

improvident

impassioned

impervious

 

irregular

 

 

 

IN, IL, IM, IR – in, on, into

 

invade

inaugurate

incandescent

incarcerate

 

incense

indenture

induct

ingratiate

 

introvert

incarnate

inception

incisive

 

infer

infusion

ingress

innate

 

inquest

inscribe

insinuate

inter

 

illustrate

imbue

immerse

implicate

 

irrigate

irritate

 

 

INTER – between, among

 

intercede

intercept

interdiction

interject

 

interlocutor

interloper

intermediary

intermittent

 

interpolate

interpose

 

 

INTRA, INTR – within

 

intrastate

intravenous

intramural

intrinsic

IT, ITER – between, among

 

transit

itinerant

transitory

reiterate