44 entries under noun topic. ×

29
mumble(verb, go, deliver, low)
27
murmur(verb, expression, go, sound)
24
whisper(verb, go, information, express)
19
grumble(verb, low, happy, protest)
11
grunt(verb, low, happy, complain)
11
murmuration(low, buzz, vocalization, monotone)
10
muttering(verb, low, buzz)
10
murmuring
7
rumble(verb, utter, buzz, grumble)
6
undertone(low, hint, suggestion, trace)
5
grumbling
5
lament(verb, whine, groan, lamentation)
5
sigh(verb, hint, utter, flow)
5
wail(verb, whine, groan, lamentation)
4
garble
4
sob(verb, whine, groan, lamentation)
4
voice(verb, expression, express, talk)
3
buzz(low, hint, trace, utter)
3
mussitation
3
plaint
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APASmart Define. (2015). mutter thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mutter/thesaurus/synonyms
ChicagoSmart Define. 2015. "mutter thesaurus" https://smartdefine.org/mutter/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, mutter thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mutter/thesaurus/synonyms>.
MLASmart Define. "mutter thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/mutter/thesaurus/synonyms>