| worst enemy(expression, opposition, opponent, enemy) |
| enemy(noun, opponent, adversary, antagonist) |
| villain(noun, opponent, adversary, antagonist) |
| adversary(noun, opponent, antagonist) |
| competitor(noun, opponent, adversary, antagonist) |
| rival(noun, opponent, adversary, antagonist) |
| bitter enemy(expression, opposition, opponent, enemy) |
| bitterest enemy(expression, opposition, opponent, enemy) |
| contestant(noun, opponent, adversary, antagonist) |
| deadly enemy(expression, opposition, opponent, enemy) |
| gladiator(noun, opponent, adversary, antagonist) |
| staunch opponent(expression, opposition, opponent, enemy) |
| antagonist(noun, opponent, adversary) |
| assailant(noun, opponent, adversary, antagonist) |
| opponent(noun, adversary, antagonist) |
| opposition(noun, opponent, adversary, antagonist) |
| arch enemy(expression, opposition, opponent, enemy) |
| avowed enemy(expression, opposition, opponent, enemy) |
| bitter adversary(expression, opposition, opponent, enemy) |
| bitter foe(expression, opposition, opponent, enemy) |