Antagonistic

//ænˌtæɡ.əˈnɪs.tɪk// adj

Definitions

Adjective
  1. 1
    Contending or acting against.

    "They were distinct, adverse, even antagonistic."

  2. 2
    Relating to an antagonist.
Adjective
  1. 1
    incapable of harmonious association wordnet
  2. 2
    used especially of drugs or muscles that counteract or neutralize each other's effect wordnet
  3. 3
    arousing animosity or hostility wordnet
  4. 4
    characterized by antagonism or antipathy wordnet
  5. 5
    indicating opposition or resistance wordnet

Etymology

From antagonist + -ic.

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