Definition of "mumble" []

To utter indistinctly by lowering the voice or partially closing the mouth: mumbled an insincere apology. (verb-transitive)
To chew slowly or ineffectively without or as if without teeth. (verb-transitive)
To speak words indistinctly, as by lowering the voice or partially closing the mouth. (verb-intransitive)
To chew food slowly or ineffectively, as if with the gums. (verb-intransitive)
A low indistinct sound or utterance. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "mumble" in a sentence

"All I hear is "aww .... it's okay. * mumble mumble*" KayLee is slurring her words."
"The highlights included not asking any medically relevant questions before pronouncing I had "* mumble mumble*, but you don't need to know that." gee doc who else should know?"
"In fact, it works out to be about * mumble ... mumble* right around 8% of the billions of computer users. dowell100 October 3, 2009 4: 37 PM PDT"

Words like "mumble"

chew jaw manducate masticate

mouth mumbled mumbles mumbling

speak talk utter utterance

verbalise verbalize vocalization