The definition of an opponent is someone who you compete against, who has interests opposing yours, or is a person who is against something.
One that competes with another, as in sports or business; a rival.
One that equals or almost equals another in a particular respect:
A state of open, often prolonged fighting; a battle or war.
One that contests or disputes something, such as an election or a will.
A contest, or match
Find another word for contender. In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for contender, like: opponent, competitor, rival, corrival, conflict, , contestant, challenger, front-runner, middleweight and competition.