prefix anticontra counter dis in il im ir mis non un fore post pre re bi kilo micro mini mono multi semi tri uni ab co de ex-/e extra im in inter mid pro

meaning

Common Prefixes (classified) example 1. negative, not

against anti-cancer, antisocial against contradict, contrary, contrast against, corresponding counter-attack, counterpart not, away dislike, dishonest, dissatisfy not indirect, inadequate not(before l) illiterate, illegal not(before b, m, p) immoral, impolite, imbalance not(before r) irregular, irrelevant badly, wrongly misunderstand, misfortune not non-smoker, nonsense not unfair, unload 2. time before after before again, back foretell, forefather postwar, postgraduate predict, preview renew, reorganize 3. amount or number

two or twice bicycle, bimonthly thousand Kilogram, kilometer small, on a small scale micro-computer, microscope unusually small or miniskirt, minibus short one monologue, monorail many multimedia, multinational half semicircle, semifinal three triangle, tricycle one, single uniform, unilateral 4. direction, location, or placement away from with or together down, away from out, former beyond, outside into into between in the middle of forward abnormal, absent coexist, cooperate decrease, depart, emit, export, exclude, ex-girlfriend extraordinary, extracurricular immigrate, import include, input international, interview midday, midland progress, promote