counter-

counter-
counter- /kaʊntə $ -tər/ prefix1. the opposite of something:
    a counterproductive thing to do (=producing results opposite to what you wanted)
    It is not hard to find a counter-example (=an example that shows the opposite).
2. done or given as a reaction to something, especially to oppose it:
    claims and counterclaims
3. matching something:
    my counterpart in the American system (=someone who has the same job as I have)

counter-BrE /ˈkaʊntə(r)/ 🔊NAmE /ˈkaʊntər/ 🔊 combining form (in nouns, verbs, adjectives and adverbs 构成名词、动词、形容词和副词) against; opposite 逆；反对；相反；对立◆counterterrorism反恐怖主义◆counter-argument相对立的论点 corresponding 相应；对应◆counterpart对方职位相当的人