| sorehead(noun, slang, happy, grouch) |
| sourpuss(noun, slang, happy) |
| squawker |
| censurer(noun, discontent, opponent, enemy, attacker) |
| croaker |
| grump(noun, person, happy, whiner) |
| backseat driver(noun, expression, opponent, enemy, attacker) |
| belittler(noun, opponent, enemy, attacker, critic) |
| bleater |
| censor(noun, opponent, enemy, attacker, critic) |
| cockblock |
| disapprover(noun, opponent, enemy, attacker, critic) |
| disparager(noun, opponent, enemy, attacker, critic) |
| disputer(noun, opponent, enemy, attacker, critic) |
| nit-picker(noun, opponent, enemy, attacker, critic) |
| quibbler(noun, opponent, enemy, attacker, critic) |
| reviler(noun, opponent, enemy, attacker, critic) |
| sidewalk superintendent(noun, expression, opponent, enemy, attacker) |
| slanderer(noun, opponent, enemy, attacker, critic) |
| troublemaker(noun, rebel, protester, grouch, grumbler) |