- 1Someone who competes against or fights another in a contest, game, or argument; a rival or adversary: he beat his opponent by a landslide marginMore example sentences
- In both contests Webb stopped his opponents in the first round with an awesome display of punching.
- If successful, the bidders win the whole game; if not their opponents win the game.
- Then they allowed their opponents back into the game to snatch victory with two late goals.
- 1.1A person who disagrees with or resists a proposal or practice: an opponent of the economic reformsMore example sentences
- Most importantly he was a vigorous opponent of giving the Bank of England independence.
- An ardent opponent of war, he made a packet from investing in military supplies.
- It is more accurate to say he was an opponent of the regime.
late 16th century (denoting a person opening an academic debate by proposing objections to a philosophical or religious thesis): from Latin opponent- 'setting against', from the verb opponere, from ob- 'against' + ponere 'place'.