| grumbler(noun, happy, discontent, whiner) |
| whiner(noun, happy, bear, bug, rebel) |
| bellyacher(noun, slang, happy, whiner) |
| complainant(noun, opponent, enemy, attacker, critic) |
| critic(noun, opponent, enemy, censor, detractor) |
| faultfinder(noun, happy, bear, bug, crab) |
| moaner(noun, whiner) |
| crybaby(noun, malcontent, whiner) |
| murmurer(noun, happy, grouch) |
| crab(noun, happy, bear, bug, grouch) |
| crank(noun, person, happy, bear, informal) |
| griper(noun, happy, informal) |
| grouch(noun, happy, bear, bug, rebel) |
| grouser(noun, happy, informal) |
| growler(noun, happy, discontent, whiner) |
| mutterer(noun, happy, grouch) |
| sniveller |
| lamenter |
| malcontent(noun, bear, discontent, bug, rebel) |
| protester(noun, rebel, grouch, grumbler, whiner) |