muttering
noun
[ ˈmʌtərɪŋ ]
• a privately expressed complaint or expression of dissatisfaction.
• "there were disloyal mutterings about his leadership"
mutter
verb
• say something in a low or barely audible voice, especially in dissatisfaction or irritation.
• "he muttered something under his breath"
Similar:
talk under one's breath,
murmur,
mumble,
whisper,
speak in an undertone,
speak sotto voce,
speak in hushed tones,
talk to oneself,
Opposite:
speak out,
Origin:
late Middle English: imitative; compare with German dialect muttern .
