Definition of anti- prefix from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈænti//
    ; NAmE NAmE//ˈænti//
    (in nouns and adjectives)
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  1. 1  opposed to; against anti-tank weapons antisocial compare pro-
  2. 2  the opposite of anti-hero anticlimax
  3. 3  preventing antifreeze More Like This Prefixes a-, ante-, anti-, be-, co-, de-, demi-, dis-, en-, ex-, extra-, hyper-, hypo-, il-, in-, infra-, inter-, intra-, mis-, non-, off-, oft-, out-, over-, para-, post-, pre-, pro-, re-, retro-, semi-, sub-, trans-, ultra-, un-, under-, up-See worksheet.
  4. Word Originfrom Greek anti ‘against’.
See the Oxford Advanced American Dictionary entry: anti-