4
whining(verb, adjective, grumpy, testy, grouchy)
3
crabby(adjective, grumpy, testy, grouchy)
3
croaking
3
dissatisfied
3
drone
3
grousing(noun, adjective)
3
humming(noun, verb, adjective)
3
maundering
3
mussitation
3
peevish(adjective, grumpy, testy, grouchy)
3
petulant(adjective, grumpy, testy, grouchy)
3
rumble
3
whisper
2
bitching
2
articulating(verb, voicing)
2
babbling(noun, verb)
2
bellyaching(grumpy, testy, grouchy)
2
bewailing(verb, grumpy, testy, grouchy)
2
buzz
2
complaint
11 years ago|5.8k views|share |citing 
APASmart Define. (2015). murmuring thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/murmuring/thesaurus/synonyms
ChicagoSmart Define. 2015. "murmuring thesaurus" https://smartdefine.org/murmuring/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, murmuring thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/murmuring/thesaurus/synonyms>.
MLASmart Define. "murmuring thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/murmuring/thesaurus/synonyms>