1. mutter - noun
· a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
Synonym(s): muttering, murmur, murmuring, murmuration, mussitation
Hypernym(s): sound
2. mutter - noun
· a complaint uttered in a low and indistinct tone
Synonym(s): grumble, grumbling, murmur, murmuring, muttering
Hypernym(s): complaint
3. mutter - verb
· talk indistinctly; usually in a low voice
Synonym(s): mumble, maunder, mussitate
Hypernym(s): talk, speak, utter, mouth, verbalize, verbalise
4. mutter - verb
· make complaining remarks or noises under one's breath; "she grumbles when she feels overworked"
Synonym(s): murmur, grumble, croak, gnarl
Hypernym(s): complain, kick, plain, sound_off, quetch, kvetch
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