antagonist

English dictionary entry

Meanings

noun
  1. An opponent or enemy.
  2. One who antagonizes or stirs.
  3. A chemical that binds to a receptor but does not produce a physiological response, blocking the action of other agonist chemicals, such as endogenous chemical messengers.
  4. The main character or force opposing the protagonist in a literary work or drama.
  5. A muscle that acts in opposition to another.

Pronunciation

/ænˈtæɡənɪst/ [ɛə̯nˈtæɡənɪst] LL-Q1860 (eng)-Wodencafe-antagonist.wav en-us-antagonist.ogg

Word forms

antagonist antagonists

Etymology

From Latin antagonista, from Ancient Greek ἀνταγωνιστής (antagōnistḗs, “opponent”) (ἀντί (antí, “against”) + ἀγωνιστής (agōnistḗs, “a combatant, pleader, actor”)), from ἀνταγωνίζομαι (antagōnízomai, “to antagonize”).

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