mutter
noun
°A repressed or obscure utterance; an instance of muttering.
"The prisoners were docile, and accepted their lot with barely a mutter."
°(in Indian restaurants) peas.
verb
°To utter words, especially complaints or angry expressions, indistinctly or with a low voice and lips partly closed; to say under one's breath.
°To speak softly and incoherently, or with imperfect articulations.
synonyms: growl, grumble, mumble, babble more» , murmur, ramble, stutter, putter, rumble