3
whiner(noun, person, happy, bear, bug)
2
barbarian
2
boor(noun, police, lout, copper, dork)
2
crackpot
2
croaker
2
curmudgeon(noun, person, bear, pain, bug)
2
fret(verb, idle, sulk, grumble, languish)
2
fruitcake
2
grouser(noun, happy, bear, informal, bug)
2
growler(noun, happy, bear, bug, crab)
2
misery
2
peasant
2
repine(verb, sulk, languish, pine, brood)
2
sulk(verb, idle, grumble, languish, pine)
1
Cassandra
1
ache(idle, sulk, languish, pine, brood)
1
be apathetic(verb, idle, sulk, languish, pine)
1
be dejected(idle, sulk, languish, pine, brood)
1
be down in the mouth(verb, idle, sulk, grumble, languish)
1
be gloomy(verb, idle, sulk, languish, pine)
11 years ago|2.3k views|share |citing 
APASmart Define. (2015). grump thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/grump/thesaurus/synonyms
ChicagoSmart Define. 2015. "grump thesaurus" https://smartdefine.org/grump/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, grump thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/grump/thesaurus/synonyms>.
MLASmart Define. "grump thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/grump/thesaurus/synonyms>