antagonist
(noun)
noun
1. someone who offers opposition
Similar word(s): adversary, opponent, opposer, resister
Definition categories: person, individual, mortal, somebody, someone, soul
2. a muscle that relaxes while another contracts
- when bending the elbow the triceps are the antagonist
Definition categories: body
3. a drug that neutralizes or counteracts the effects of another drug
Definition categories: man–made, drug
Sentences with antagonist as a noun:
- A flexor, which bends a part, is the antagonist of an extensor, which extends it.