DictionarymutterQuiet, unclear speech
verb / noun

mutter

MUT-er/ˈmʌtər/

Speech delivered quietly and unclearly.

The woman mutters over the tangled cord while the man leans closer to hear.

A frustrated woman speaks under her breath over a tangled cord while a nearby man leans closer and cups an ear.
Etymology

Middle English moteren described low speech made with compressed lips. That manner of speaking connects directly to the indistinct, murmuring quality of modern mutter.

In context

Vivid Audio Library356:10
mutter something of their sorrow that such heavy costs should only fall upon their own employer
The Warden by Anthony Trollope | Full Classic Victorian British Literature Audiobook

More examples

  • A low mutter passes through the waiting crowd.
  • She muttered an apology without looking up.
  • Please speak clearly instead of muttering into your scarf.

Forms

mutter · mutters · muttered · muttering

Similar words

mumble
Emphasizes indistinct pronunciation rather than speaking under one's breath.
murmur
Murmur is a soft low utterance; mutter can sound indistinct or resentful.