antagonist

/æntˈæɡənəst/ · 4 syllables

Meaning

noun

1. someone who offers opposition
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

Synonyms for antagonist

• adversary
• opponent
• opposer
• resister

Antonyms of antagonist

• agonist
• synergist

Words that rhyme with antagonist

• protagonist