• WordNet 3.6
    • v mumble talk indistinctly; usually in a low voice
    • v mumble grind with the gums; chew without teeth and with great difficulty "the old man had no teeth left and mumbled his food"
    • n mumble a soft indistinct utterance
    • ***
Webster's Revised Unabridged Dictionary
    • Mumble To chew or bite gently, as one without teeth. "Gums unarmed, to mumble meat in vain."
    • Mumble To chew something gently with closed lips.
    • Mumble To speak with the lips partly closed, so as to render the sounds inarticulate and imperfect; to utter words in a grumbling indistinct manner, indicating discontent or displeasure; to mutter. "Peace, you mumbling fool.""A wrinkled hag, with age grown double,
      Picking dry sticks, and mumbling to herself."
    • Mumble To suppress, or utter imperfectly.
    • Mumble To utter with a low, inarticulate voice.
    • ***
Century Dictionary and Cyclopedia
    • mumble To speak with the vocal organs partly closed, so as to render the sounds inarticulate and imperfect; speak in low tones, hesitatingly, or deprecatingly.
    • mumble To chew or bite softly or with the gums; work food with the gums on account of lack or defectiveness of teeth.
    • mumble To utter in a low inarticulate voice.
    • mumble To chew gently; work (food) by rubbing it with the gums on account of lack of teeth.
    • mumble To cover up or hide, as if by uttering in a mumbling, unintelligible fashion; say over inarticulately: with up.
    • n mumble A low, indistinct utterance.
    • ***
Chambers's Twentieth Century Dictionary
    • v.i Mumble mum′bl to speak indistinctly: to chew softly: to eat with the lips close
    • v.t Mumble to utter indistinctly or imperfectly: to mouth gently
    • ***


  • Roden Noel
    Roden Noel
    “What if men take to following where He leads, weary of mumbling Athanasian creeds?”
  • Source Unknown
    Source Unknown
    “When in charge ponder. When in trouble delegate. When in doubt mumble.”
  • Benicio Del Toro
    Benicio Del Toro
    “I'm not Jack Nicholson. I'm not Brando. But I do mumble.”


Webster's Revised Unabridged Dictionary
OE. momelen,; cf. D. mompelen, mommelen, G. mummelen, Sw. mumla, Dan. mumle,. Cf. Mum (a.) Mumm Mump (v.)


In literature:

The page of the ancient reader over which I then mumbled is now before me.
"The Boss of Little Arcady" by Harry Leon Wilson
As they lazily mumbled the bones of the dead, When they scarce could rise from the spot where they fed.
"The Life of Lord Byron" by John Galt
Take ye that thistle to mumble upon.
"Clarissa, Volume 4 (of 9)" by Samuel Richardson
A woman, their mother, mumbled and slobbered over their hands.
"Hyacinth" by George A. Birmingham
Blake was reading in a mumbling tone, hardly distinguishable.
"The Moving Picture Boys at Panama" by Victor Appleton
The old woman mumbled and talked to herself as they strode off behind Roy and Peggy.
"The Girl Aviators' Motor Butterfly" by Margaret Burnham
He saw no sign of welcome in the faces turned toward him, but he advanced upon them, mumbling incoherently.
"The Grizzly King" by James Oliver Curwood
Then suddenly there was a stirring, and the mumble of several heavy, hushed voices.
"The Port of Adventure" by Charles Norris Williamson and Alice Muriel Williamson
But he was very weak, and would lie for hours sleeping when we rested, or mumbling and raving in a fever.
"Van Bibber and Others" by Richard Harding Davis
He mumbled and grunted, half opened his bleared eyes, then fell to snoring again.
"The Cruise of the Dazzler" by Jack London

In poetry:

Gluing their pink little snouts
To the grating, mumbling
Such nonsense round about,
"The Runaways/ Les Effares" by Arthur Rimbaud
Whene'er to God thou prayest, be sincere,
And use no other language than thy own:
Better a word or two, whose sense is clear,
Than thousands mumbled in a tongue unknown.
"Concerning Prayer, And Its Proper Requisites" by Rees Prichard
I gaze round me: none for a greeting!
By Life for the moment unpressed,
My poor wife lies sleeping--and beating
A lip-tune in dream false and fleeting,
My child mumbles close to her breast.
"From Dawn To Dawn" by Morris Rosenfeld
At this, the poor spectre - quite out of his wits -
Proceeded to shake himself almost to bits.
He rattled his chains and he clattered his bones
And he filled the whole castle with mumbles and moans.
"Colonel Fazackerley Butterworth-Toast" by Charles Causley
Last night you left me and slept
your own deep sleep. Tonight you turn
and turn. I say,
"You and I will be together till the universe dissolves."
You mumble back things you thought of
when you were drunk.
"Last night you left me and slept" by Mewlana Jalaluddin Rumi
The pale queen's honour! A low laugh scathing and sereing—
A mumbling as made by the dead in the tombs ye wot.
Braveth the dead this queen? 'Hear it, whoso hath hearing,
I vowed by my love, cold king, but I loved thee not.'
"The Sleep of Sigismund" by Jean Ingelow

In news:

The father mumbles to the bloodied, mutilated boy who lies unconscious on his lap.
The wife of a New York City man who was pushed onto subway tracks to his death by a mumbling stranger says she and her husband had argued before the tragedy.
Mumbles proclaimed it U2 day in Boston.
That is not something you have to mumble when no one is listening or an idea you have to check at the church door.
And everyone else just mumbles.
Nope, it's not because everyone else is mumbling.
A couple of years ago, my husband, Joel, started to mumble, running his words together willy-nilly.
Hole , Gorilla Rilla mumbles through his mask, hugging me fiercely.
When the playwright Tony Kushner recently grabbed a microphone and sat down for a post-screening Q&A with a filmmaker and the film's cast, he mumbled that he felt like Richard Pena.
A Generation Finds Its Mumble.
"Sthlun luv a," he mumbles at the end.
It was a little complicated to try and answer that while the speech was still in progress, so I just mumbled something about his voting record and turned back to the TV.
Chan Marshall's career has been all about learning to move – from the alluringly static lo-fi mumblings of her Nineties albums to the shyly swinging Memphis soul of 2006's The Greatest.
They mumbled and grumbled but they eventually gave in.
Relatively speaking, Your Sister 's Sister is a mumbly mess of a movie.

In science:

There are more sophisticated surface generation packages, such as FUF/SURGE (Elhadad and Robin, 1996), KPML (Bateman, 1996), MUMBLE (Meteer et al., 1987), and RealPro (Lavoie and Rambow, 1997), which produce natural language text from abstract semantic representations.
Modeling informational novelty in a conversational system with a hybrid statistical and grammar-based approach to natural language generation
ND proofs were tested as input to an early version of the MUMBLE system of D.
Planning Argumentative Texts
After many years of mumbling and talking, a direct matching of the hadronic to the quark based description is in sight.
Goldstone boson-nucleon dynamics: Working group summary and outlook
We could mumble that the sum over m should become a integral, but is not clear which should be the integration measure.
Replica method and finite volume corrections