To utter words indistinctly or with a low voice and lips partly closed; esp., to utter indistinct complains or angry expressions; to grumble; to growl. Wizards that peep, and that mutter. Is. viii. 19. Meantime your filthy foreigner will stare, And mutter to himself. Dryden.
To sound with a low, rumbling noise. Thick lightings flash, the muttering thunder rolls. Pope.
To utter with imperfect articulations, or with a low voice; as, to mutter threats. Shak.
Repressing or obscure utterance.
98,828 entries. Headwords are matched first, then definition text.