Prefixes - Top 20

anti-

against

de-

opposite

dis-

not, opposite of

en-, em-

cause to

fore-

before

in-, im-

in

in-, im-, il-, ir-

not

inter-

between

mid-

middle

mis-

wrongly

non-

not

over-

over

pre-

before

re-

again

semi-

half

sub-

under

super-

above

trans-

across

un-

not

under-

under