opponent

1 of 2

noun

op·​po·​nent ə-ˈpō-nənt 

1

: one that takes an opposite position (as in a debate, contest, or conflict)

She is a formidable opponent in the race for senator.

opponents of the war

2

: a muscle that opposes or counteracts and limits the action of another

opponent

2 of 2

adjective

1

: antagonistic, opposing

2

: situated in front

Synonyms

Noun

• adversary
• antagonist
• foe
• rival

Examples of opponent in a Sentence

Noun

She is a formidable opponent in the race for senator.

The team's opponents have not lost a game this season.

He knocked out his opponent in the third round.

Recent Examples on the Web

Noun

Previously announced for the show include WWE United States Champion Shinsuke Nakamura defending against LA Knight and WWE Women's United States Champion Chelsea Green vs. an unknown opponent that will be revealed ahead of the show. —David Faris, Newsweek, 27 Feb. 2025

But the Terps lost for the first time in five games and slipped to 16-2 this winter at Xfinity Center, falling at home to a league opponent for the first time this season and losing at home for the first time since a 78-74 setback to then-No. 15 Marquette on Nov. 15. —Edward Lee, Baltimore Sun, 27 Feb. 2025

Adjective

The Knicks already struggle to defend the perimeter — ranking dead-last in opponent three-point percentage — and the lack of a true paint presence is only amplifying that weakness. —Kristian Winfield, New York Daily News, 26 Feb. 2025

Florida currently ranks third nationally in opponent effective field-goal percentage (43%), making life miserable for opposing offenses. —Daniel R. Depetris, Newsweek, 1 Feb. 2025

Word History

Etymology

Noun

borrowed from Medieval Latin oppōnent-, oppōnens "one who proposes something for discussion," from present participle of Latin oppōnere "to place as an obstacle, set in opposition to, argue in reply" — more at oppose

Adjective

borrowed from Latin oppōnent-, oppōnens, present participle of oppōnere "to place as an obstacle, set in opposition to, argue in reply" — more at oppose

First Known Use

Noun

1553, in the meaning defined at sense 1

Adjective

1647, in the meaning defined at sense 1

Rhymes for opponent

• component
• deponent
• exponent
• proponent
• multicomponent
• ponent

Kids Definition

opponent

noun

op·​po·​nent

ə-ˈpō-nənt

: a person or thing that opposes another

Medical Definition

opponent

noun

op·​po·​nent ə-ˈpō-nənt 

: a muscle that opposes or counteracts and limits the action of another