- a person who is on an opposing side in a game, contest, controversy, or the like; adversary.
- being opposite, as in position.
- opposing; adverse; antagonistic.
- bringing parts together or into opposition, as a muscle.
- a person who opposes another in a contest, battle, etc
- an opponent muscle
- opposite, as in position
- (of a muscle) bringing two parts into opposition
- opposing; contrary
