Synonyms of mutter in English:

mutter


See definition of mutter

verb

1‘a group of men stood muttering in one corner of the room’

SYNONYMS

talk under one's breath, murmur, mumble, whisper, speak in an undertone, speak sotto voce, speak in hushed tones

talk to oneself

ANTONYMS

speak out

2‘backbenchers muttered about the reshuffle’

SYNONYMS

grumble, moan, complain, grouse, carp, whine, bleat

informal gripe, beef, bitch, whinge, sound off

British informal chunter, grizzle

Northern English informal mither

North American informal kvetch