| betrayer(noun, someone, rival, opponent, competitor) |
| murderer(noun, someone, rival, opponent, competitor) |
| rebel(noun, someone, rival, opponent, competitor) |
| revolutionary(noun, someone, rival, opponent, competitor) |
| antipode |
| antithesis |
| antithetical(hostile, counter, different, antagonistic, contrary) |
| averse(adjective, hostile, counter, different, antagonistic) |
| belligerent |
| challenger(noun, match, opposition, rival, opponent) |
| clashing(hostile, counter, different, antagonistic, contrary) |
| collate |
| competing(adjective, rival, opposing, obstructive) |
| competitive(opposing, competing) |
| con(noun, match, opposition, rival, opponent) |
| counter(hostile, different, antagonistic, contrary, opposite) |
| counteract |
| critic(noun, opponent, censor, detractor) |
| detestation(hate, loathing, abhorrence, abomination) |
| dissentient(noun, adjective, opposition, hostile, counter) |