| murmurer(noun, happy, bear, bug, police) |
| grouser(noun, happy, bear, informal, bug) |
| growler(noun, happy, bear, bug, police) |
| grumbler(noun, happy, bear, bug, police) |
| complainer(noun, happy, grouch) |
| griper(noun, happy, bear, informal, bug) |
| mumbler |
| sorehead(noun, slang, happy, bear, bug) |
| whiner(noun, happy, bear, bug, police) |
| faultfinder(noun, happy, bear, bug, police) |
| bellyacher(noun, slang, happy, grouch) |
| crab(noun, happy, grouch) |
| crank(noun, happy, informal, grouch) |
| croaker |
| grouch(noun, happy, bear, bug, police) |
| bear(noun, informal, bug, police, lout) |
| grump(noun, happy, bear, bug, police) |
| kicker(noun, grouch) |
| malcontent(noun, grouch) |
| crosspatch(noun, bear, bug, police, lout) |