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v. mum·bled, mum·bling, mum·bles
1. To utter indistinctly by lowering the voice or partially closing the mouth: mumbled an insincere apology.
2. To chew slowly or ineffectively without or as if without teeth.
1. To speak words indistinctly, as by lowering the voice or partially closing the mouth.
2. To chew food slowly or ineffectively, as if with the gums.
A low indistinct sound or utterance.

[Middle English momelen, from Middle Dutch mommelen.]

mum′bler n.
mum′bly adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mumbler - a person who speaks softly and indistinctly
speaker, talker, verbaliser, verbalizer, utterer - someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous); "the speaker at commencement"; "an utterer of useful maxims"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n he’s a real mumblerer nuschelt so
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
A little older, a little colder: and already are they mystifiers, and mumblers and mollycoddles.
As Halloween approaches, townies caution her to beware, because that's when the legendary Mumbler rises out of the marsh to grab unsuspecting teens.
Tribune News Service WHEN it comes to international diplomacy, President Donald Trump is no milquetoast mumbler. He can be undiplomatically blunt, even rude, but that doesn't automatically mean he's wrong.
Mumbler: viewers couldn't work out what Max said to Abi
The victory would go to the dynamic and not the dithering, to the communicator and not the mumbler.
In his later years - thanks to Spitting Image and Private Eye - Coleman was unfairly portrayed as a gaffeprone mumbler. An oft-quoted "Colemanball" is: "and there goes Juantorena down the back straight, opening his legs and showing his class" yet he never even said it.
I do not like intercoms because I am a natural mumbler with a slight lisp and for some reason I always end up having to spell something containing an S and an F.
I couldn't tell if he was mocking me or was just a mumbler.
Such a dialectic might also emerge in works such as McQueen's Mumbler, 2001, a video shot from the top of a television of the artist lounging on a bed in a hotel room.
"Tea party/right wing," "conservative stooges," "crackpots," "fringe," "lightweight," "zealot," "national embarrassment," "believes in nothing, stands for nothing, lies about everything," "froth-at-the-mouth," "white supremacist," "homophobe," "misogynist," "wrinkled, toothless mumbler," "no sense of direction," "paranoid cave dweller."
The only problem was that the last rabbi we had engaged, a bearded mumbler in Orthodox garb who whispered something over my grandmother's grave, pocketed the white envelope from my grandfather's hand, and slipped off into the night, did not leave us with the most inspired feeling toward the clergymen of our faith.
I'm a pretty bad mumbler myself, so it was a short and messy conversation.