mutter Meaning, Definition & Usage

noun a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
murmuring; muttering; murmuration; murmur; mussitation.
noun a complaint uttered in a low and indistinct tone
murmuring; grumbling; grumble; muttering; murmur.
verb talk indistinctly; usually in a low voice
mussitate; maunder; mumble.
verb make complaining remarks or noises under one's breath
grumble; gnarl; murmur; croak.
- she grumbles when she feels overworked

Prob. of imitative origin; cf. L. muttire, mutire.

imperfect & past participle Muttered ; present participle & verbal noun Muttering

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.