| aristarch(noun, opponent, enemy, attacker, critic) |
| backbiter(noun, fury, scold, nag, bitch) |
| backseat driver(noun, expression, opponent, enemy, attacker) |
| belittler(noun, opponent, enemy, attacker, critic) |
| blamer(noun, opponent, enemy, attacker, critic) |
| castigator(noun, scold, critic, backbiter, fire-eater) |
| caviller(noun, scold, critic, complainer, backbiter) |
| commentator |
| complainant(noun, opponent, enemy, attacker, critic) |
| complainer(noun, opponent, enemy, attacker, critic) |
| connoisseur |
| cynic(noun, detractor, nonbeliever) |
| disapprover(noun, opponent, enemy, attacker, critic) |
| disparager(noun, opponent, enemy, attacker, critic) |
| disputer(noun, opponent, enemy, attacker, critic) |
| doubter(noun, opponent, enemy, attacker, critic) |
| fretter(noun, opponent, enemy, attacker, critic) |
| maligner(noun, opponent, enemy, attacker, critic) |
| mud-slinger(noun, opponent, enemy, attacker, critic) |
| nag(noun, fury, scold, critic, bitch) |