6
mutters(verb, tone, stammers)
5
grumbles(noun, verb, tone)
5
murmurs(noun, verb, tone)
3
says(verb, tone)
3
chatters(verb, tone)
3
croaks(noun, verb, tone)
3
snarls(noun, verb, tone)
3
splutters(verb, grouse, protests, stumbles, snorts)
3
stammers(verb, flows, stumbles, ripples, growls)
3
stutters(verb, flows, stumbles, ripples, growls)
2
babbles
2
groans(verb, tone)
2
hums
2
lisps(verb, stammers)
2
mumble
2
sputters(verb, stumbles, murmurs, stutters)
2
whispers(noun, verb, tone)
1
barks(verb, tone)
1
bawls(verb, tone)
1
beams(verb, tone)
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APASmart Define. (2016). mumbles thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/mumbles/thesaurus/synonyms
ChicagoSmart Define. 2016. "mumbles thesaurus" https://smartdefine.org/mumbles/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, mumbles thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/mumbles/thesaurus/synonyms>.
MLASmart Define. "mumbles thesaurus" 3 April 2016. Web. 20 September 2026. <https://smartdefine.org/mumbles/thesaurus/synonyms>