mumbling

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. indistinct enunciation
• Derivationally related forms:
mumble
• Hypernyms:
enunciation, diction
2. ineffectual chewing (as if without teeth)
• Syn:
gumming
• Derivationally related forms:
gum (for: gumming), mumble
• Hypernyms:
chew, chewing, mastication, manduction