opponent
Americannoun
adjective
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being opposite, as in position.
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opposing; adverse; antagonistic.
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Anatomy. bringing parts together or into opposition, as a muscle.
noun
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a person who opposes another in a contest, battle, etc
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anatomy an opponent muscle
adjective
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opposite, as in position
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anatomy (of a muscle) bringing two parts into opposition
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opposing; contrary
Usage
What does opponent mean? An opponent is someone who is against another person, as in a game, exhibition, or controversy. Opponent can also sometimes be used to describe being in opposition, as in Felix saw no opponent reason to change his vote. Example: Our opponent is strong, so don’t do anything reckless during the game.
Related Words
Opponent, competitor, rival refer to persons engaged in a contest. Opponent is the most impersonal, meaning merely one who opposes; perhaps one who continually blocks and frustrates or one who happens to be on the opposite side in a temporary contest: an opponent in a debate. Competitor emphasizes the action in striving against another, or others, for a definite, common goal: competitors in business. Rival has both personal and emotional connotations; it emphasizes the idea that (usually) two persons are struggling to attain the same object: rivals for an office.
Other Word Forms
- opponency noun
Etymology
Origin of opponent
1580–90; < Latin oppōnent- (stem of oppōnēns, present participle of oppōnere to place over, against, or in front of, make an obstacle), equivalent to op- op- + pōn ( ere ) to place, set, put + -ent- -ent
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Makhmudov is a very well-picked opponent for a number of reasons.
From BBC • Apr. 9, 2026
His opponent was a 20-year-old prodigy from Uzbekistan named Javokhir Sindarov.
From The Wall Street Journal • Apr. 6, 2026
French President Jacques Chirac, a strong opponent of the effort in Iraq, rebuked them for having “missed a great opportunity to shut up.”
From The Wall Street Journal • Apr. 6, 2026
She had 16 in a lower-scoring performance against Texas on Friday, but her imposing defense and ability to move as fluidly as a guard make her a matchup headache for any opponent.
From Los Angeles Times • Apr. 5, 2026
“It is a matter of perspective, the difference between opponent and partner,” Tsukiko says.
From "The Night Circus" by Erin Morgenstern
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.