1
bellyaching
1
blabbing
1
breath
1
breathy voice
1
burbling
1
buzz(noun, low, hubbub, drivel, hum)
1
buzzing(verb, low, buzz)
1
chattering
1
choking
1
clacking
1
complaintful
1
crabbing
1
crabby
1
cranky
1
crooning
1
crying(verb, voicing)
1
disappointed
1
discontented
1
disgruntled
1
displeased
11 years ago|3.8k views|share |citing 
APASmart Define. (2015). muttering thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/muttering/thesaurus/synonyms
ChicagoSmart Define. 2015. "muttering thesaurus" https://smartdefine.org/muttering/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, muttering thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/muttering/thesaurus/synonyms>.
MLASmart Define. "muttering thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/muttering/thesaurus/synonyms>