| backbiter(noun, opposition, agent, villain, rebel) |
| bad person(noun, expression, opposition, agent, villain) |
| bandit(noun, opposition, agent, villain, rebel) |
| battler(noun, tough, competitor, participant, objector) |
| betrayer(noun, opposition, agent, villain, rebel) |
| bickerer |
| calumniator(noun, opposition, agent, villain, rebel) |
| champion(noun, tough, combatant, mercenary, militant) |
| competition |
| contentious |
| controversial |
| defiler(noun, opposition, agent, villain, rebel) |
| disputatious |
| dissentient(noun, match, opposition, rival, opponent) |
| emulator(noun, opposition, agent, villain, rebel) |
| falsifier(noun, opposition, agent, villain, rebel) |
| fifth column(noun, expression, opposition, agent, villain) |
| gladiator(noun, tough, champion, mercenary, militant) |
| guerrilla(noun, opposition, agent, villain, rebel) |
| inquisitor(noun, opposition, agent, villain, rebel) |