mussitate

/ˈmʌsɪteɪt/
verb
  1. To mutter or mumble, speaking in a low, indistinct voice.
    • She mussitated a reply, too shy to speak clearly.
    • During the lecture, the student began to mussitate complaints under his breath.
    • The old man would mussitate to himself while sitting on the park bench.
Antonyms
What does "mussitate" mean? | whatsthatwordmean | whatsthatwordmean