Mutter

[imp. & p. p. MUTTERED; p. pr. & vb. n. MUTTERING.] [Prov. Ger. muttern, Lat. muttire, mutire.] 1. To utter words with a low voice and compressed lips, with sullenness or in complaint; to grumble; to murmur. Meantime your filthy foreigner will stare, And mutter to himself. Dryden. 2. To sound with a low, rumbling noise. Thick lightnings flash, the muttering thunder rolls. Pope.

v. t. To utter with imperfect articulations, or with a low, murmuring voice.

n. Repressed or obscure utterance.