Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: antagonist  an'ta-gu-nist
  1. Someone who offers opposition
    - adversary, opponent, opposer, resister
     
  2. A muscle that relaxes while another contracts
    "when bending the elbow the triceps are the antagonist"
     
  3. A drug that neutralizes or counteracts the effects of another drug

Derived forms: antagonists

Type of: antagonistic muscle, drug, individual, mortal, person, somebody, someone, soul

Antonym: agonist, synergist

Encyclopedia: Antagonist