Meaning Of Mutter

v. i.

To utter words indistinctly or with a low voice and lips partly closed; esp., to utter indistinct complaints or angry expressions; to grumble; to growl.

v. i.

To sound with a low, rumbling noise.

v. t.

To utter with imperfect articulations, or with a low voice; as, to mutter threats.

n.

Repressed or obscure utterance.