35 Most Useful Prefixes for SAT Prep Vocabulary - w/examples!

not created by me

a- or an-

without, lack of

ante

before

anti-

against

auto-

self

ambi-

both

bene-

good

bi- or di-

two

co- or com-

with, together

con- or contra-

against

circum-

around

corp-

body

de-

down, away from

dict-

speak

dis-

apart, away from

dys-

bad, painful, difficult

eu-

good, pleasant

ex-

out, away from

extra- or extro-

beyond, outside

homo-

same

hetero-

different, other

hyper-

above, excessive

hypo-

below, deficient

in- or im-

in, on, or not

inter-

between, among

mal-

bad

micro-

small

macro-

large

mis-

wrong

multi- or poly-

many

neo-

new

pre-

before

pro-

for

re-

back, again

retro-

backward, behind

un-

not, opposite of