mutter Synonyms

grumble murmur mumble muttering mussitate grumbling whisper rumble maunder murmuring murmuration mussitation gnarl babble carp growl complain croak suspiration murmur under one's breath mutter under one's breath speak under one's breath talk under one's breath mumble under one's breath speke stutter sigh snarl sniveling snuffling sough whispering splutter stammer susurration susurrus undertone whispers throated talk to oneself grousing utter softly susurrate grouch kvetch burble say softly speak indistinctly whispered whinge