| blackener |
| blamer(noun, opponent, enemy, attacker, critic) |
| censor(noun, opponent, enemy, attacker, critic) |
| censurer(noun, opponent, enemy, attacker, critic) |
| complainant(noun, opponent, enemy, attacker, critic) |
| complainer(noun, opponent, enemy, attacker, critic) |
| cynic(noun, critic, disparager) |
| disapprover(noun, opponent, enemy, attacker, critic) |
| disputer(noun, opponent, enemy, attacker, critic) |
| doubter(noun, opponent, enemy, attacker, critic) |
| enemy(noun, someone, rival, opponent, competitor) |
| faultfinder(noun, opponent, enemy, attacker, critic) |
| fretter(noun, opponent, enemy, attacker, critic) |
| hatchet man |
| hypercritic(noun, opponent, enemy, attacker, critic) |
| libeller |
| mud-slinger(noun, opponent, enemy, attacker, critic) |
| mudslinger(noun, critic, reluctancy, denigrator, knocker) |
| nagger(noun, opponent, enemy, attacker, critic) |
| nit-picker(noun, opponent, enemy, attacker, critic) |