| attacker(noun, person, attack, opposition, disturbance) |
| assaulter(noun, person, attack, disturbance, opponent) |
| antagonist(noun, opposition, agent, rebel, criminal) |
| enemy(noun, opposition, someone, rival, opponent) |
| aggressor(noun, person, attack, opponent, champion) |
| foe(noun, opposition, agent, villain, rebel) |
| opponent(noun, person, opposition, agent, rebel) |
| adversary(noun, opposition, agent, rebel, criminal) |
| combatant(noun, tough, opponent, combatant, enemy) |
| mugger(noun, person, disturbance, violation, attacker) |
| gladiator(noun, combatant, fighter) |
| invader(noun, attack, opposition, agent, villain) |
| competitor(noun, opposition, agent, villain, rebel) |
| intruder(noun, attacker, invader) |
| bully(noun, combatant, fighter) |
| assailer(noun, person, attack, attacker) |
| contestant(noun, opposition, rival, opponent, champion) |
| opposition(noun, agent, rebel, criminal, rival) |
| raider(noun, attacker, mugger, invader) |
| rival(noun, opposition, agent, rebel, criminal) |