anti-

anti-
anti- /æntɪ $ æntɪ, æntaɪ/ prefix1. opposed to
   OPP  pro-:
    antinuclear (=opposing the use of nuclear weapons and power)
    anti-American
2. the opposite of something:
    anticlimax (=an unexciting ending instead of the expected exciting ending)
    antimatter (=material completely opposite in kind to the ordinary material in the universe)
3. acting to prevent something:
    antifreeze (=a liquid added to a car’s engine to prevent freezing)
    antiseptic (=a liquid that kills harmful bacteria)
     

THESAURUS

   ▪ oppose to think that a plan or idea is wrong, and to try to prevent it from happening or succeeding: Hundreds of people wrote to oppose the scheme. | The other parties opposed the bill.
   ▪ be against something/be opposed to something to think that something is wrong and should not be allowed: I used to be against the death penalty. | Most people are opposed to the privatization of the city’s public transportation system.
   ▪ not agree with something to think that something is wrong: I don’t agree with training animals for entertainment.
   ▪ object to say or feel that something is wrong: No one objected to the proposals. | She strongly objects to being told what to do.
   ▪ resist to try to prevent a change from happening, or prevent yourself from being forced to do something: People often resist change, when they have been used to doing things in a certain way for a long time. | She resisted all attempts to teach her how to cook.
   ▪ anti- opposed to something – used in adjectives: antiwar protesters | an anti-slavery movement