Resource List of 90 Prefixes PREFIX MEANING EXAMPLE a a ab ad ambi ante anti arch at auto bi be bene circum co con contra counter de deca demi di dia dis dys en endo epi equi ethno eu ex ex exo extra for not, without at, in, on, to from, away from against both before against senior, chief to, toward self two, twice about, become good around together with against against down, away from ten half two through, across not, do the opposite bad, badly to cause, provide internal to, against, added on equal race, nation good, happy out of, away from former outside outside, beyond away, against, not aseptic asleep abnormal adjacent ambidextrous antecedent antipiracy archangel attend automobile biannual befriend benevolent circumnavigate coexist construct contradict counterclockwise denounce decathlon demigod divert diameter discontinue dysfunction enable endocrine epidemic equidistant ethnography eulogy exceed ex-president exoskeleton extraordinary forbid © 2016 by All About® Learning Press, Inc. 1 Resource List of 90 Prefixes PREFIX MEANING EXAMPLE fore homo hydro hyper hypo il im in in infra inter intra intro ir iso macro mal mega meta micro mini mis mono multi neo non ob octa omni over pan para patri peri poly post before, in front of same water extra, over, beyond under, below not not within, into not below, underneath among, between inside inwards not equal large bad large altered, behind very small small wrongly, badly one, single many new not in the way of eight all above, too much whole alongside, similar to father around many after forehead homogeneous hydroelectric hyperextend hypothermia illegible improper intrude inhumane infrastructure interfere intravenous introspect irresponsible isosceles macroeconomics maltreat megaphone metaphysics microscope minibus misbehave monorail multicolor neoclassical nonexistent obscure octagon omnipotent overdo panorama paramedic patriarch periscope polygamy postpone © 2016 by All About® Learning Press, Inc. 2 Resource List of 90 Prefixes PREFIX MEANING EXAMPLE pre pro proto pseudo quad re retro semi step sub super tele trans tri ultra un under uni up vice with before forward, in favor of earliest, original not real four again, back backward half, partially prevent propose prototype pseudoscience quadruple retell retroactive semicircle stepmother submarine supermarket telescope transportation tricycle ultraconservative uninspired undercook unicycle uplift vice-president withhold relationship due to remarriage under, near more than, above, extra far across, beyond three beyond, extreme not, the reverse of beneath, below, insufficient one toward a higher position in place of from, against © 2016 by All About® Learning Press, Inc. 3