| opponent(noun, opposition, enemy, attacker, competitor) |
| adversary(noun, opposition, opponent, enemy, attacker) |
| enemy(noun, opposition, friend, opponent, adversary) |
| antagonist(noun, person, friend, opponent, enemy) |
| competitor(noun, opponent, enemy, attacker, adversary) |
| rival(noun, opponent, enemy, attacker, competitor) |
| opposition(noun, associate, opponent, enemy, attacker) |
| belittler(noun, opponent, enemy, adversary) |
| contender(noun, opponent, enemy, attacker, competitor) |
| challenger(noun, opponent, enemy, adversary) |
| contestant(noun, opponent, enemy, adversary) |
| critic(noun, opponent, enemy, adversary) |
| competition(noun, opponent, enemy, adversary) |
| emulator(noun, law, opponent, enemy, attacker) |
| faultfinder(noun, opponent, enemy, adversary) |
| corrival(noun, opponent, enemy, adversary) |