| enemy(noun, someone, rival, opponent, competitor) |
| falsifier(noun, opposition, agent, villain, rebel) |
| fifth column(noun, expression, opposition, agent, villain) |
| guerrilla(noun, opposition, agent, villain, rebel) |
| informer(noun, opposition, agent, villain, rebel) |
| inquisitor(noun, opposition, agent, villain, rebel) |
| invader(noun, opposition, agent, villain, rebel) |
| knocker |
| libeller |
| mudslinger(defamer, denigrator) |
| other side(noun, expression, opposition, agent, villain) |
| prosecutor(noun, opposition, agent, villain, rebel) |
| rebel(noun, opposition, agent, villain, spy) |
| reviler(noun, detractor) |
| revolutionary(noun, opposition, agent, villain, rebel) |
| saboteur(noun, opposition, agent, villain, rebel) |
| seditionist(noun, opposition, agent, villain, rebel) |
| spy(noun, opposition, agent, villain, rebel) |
| terrorist(noun, opposition, agent, villain, rebel) |
| Benedict Arnold(noun, expression, spy, impostor, renegade) |