mumbling
1. [ noun ] (linguistics,phonetics) indistinct enunciation
Related terms: enunciation mumble
2. [ adjective ] speaking low and indistinctly
Synonyms: muttering
Examples:

"a mumbling parson stood beside the dying man" "muttering crowds of onlookers"

Related terms: speaking
3. [ noun ] ineffectual chewing (as if without teeth)
Synonyms: gumming
Related terms: chew mumble
Similar spelling:   mumble
  mumbler