1
chattering
1
chewing
1
clacking
1
croaking
1
crooning
1
crunching
1
dumb(adjective, confused, rambling, disjointed)
1
enunciation
1
exhalation
1
faint(adjective, quiet)
1
gabble
1
gibber
1
gnawing
1
indistinct(adjective, confused, rambling, disjointed)
1
jabber
1
jabbering
1
jibber
1
little voice
1
low voice
1
masticate
11 years ago|4.2k views|share |citing 
APASmart Define. (2015). mumbling thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/mumbling/thesaurus/synonyms
ChicagoSmart Define. 2015. "mumbling thesaurus" https://smartdefine.org/mumbling/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, mumbling thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/mumbling/thesaurus/synonyms>.
MLASmart Define. "mumbling thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/mumbling/thesaurus/synonyms>