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mumble

American  
[muhm-buhl] / ˈmʌm bəl /

verb (used without object)

  • mumbles,
    present (3rd person singular)
  • mumbled,
    past participle,  past
  • mumbling
    present participle
  1. to speak in a low indistinct manner, almost to an unintelligible extent; mutter.

    Antonyms:
    articulate
  2. to chew ineffectively, as from loss of teeth.

    to mumble on a crust.


verb (used with object)

  • mumbles,
    present (3rd person singular)
  • mumbled,
    past participle,  past
  • mumbling
    present participle
  1. to say or utter indistinctly, as with partly closed lips.

    He mumbled something about expenses.

  2. to chew, or try to eat, with difficulty, as from loss of teeth.

noun

  • mumbles
    plural
  1. a low, indistinct utterance or sound.

mumble British  
/ ˈmʌmbəl /

verb

  1. to utter indistinctly, as with the mouth partly closed; mutter

  2. rare to chew (food) ineffectually or with difficulty

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an indistinct or low utterance or sound

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See murmur.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of mumble

1275–1325; Middle English momelen, equivalent to mom ( me ) mum 1 + -elen -le; compare Dutch mommelen, German mummeln

Explanation

To mumble is to talk quietly and indistinctly. When people speak in a mumble, it's hard to understand them. Mumbling is a way of speaking that’s a little like whispering. Like whispering, mumbling is usually done with a low voice. However, mumbling is harder to understand than a whisper. When we mumble, we don't form out words clearly. Mumbling is the opposite of speaking clearly. Some people mumble because they lack confidence. Others might mumble because they're tired or not feeling well. If you want to be a good public speaker, you'd better learn to not mumble.

Keep Reading on Vocabulary.com

Vocabulary lists containing mumble

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

In my rare visits to modern art museums, I mumble: “This piece represents an indictment of societal norms.”

From The Wall Street Journal Jan. 18, 2026

This wasn’t cause for concern — a lot of students mumble.

From Salon Sep. 30, 2024

He normalized the idea that you can mumble stuff and do nothing.

From Slate Mar. 2, 2024

This is a regular criticism of Nolan - characters in his films often mumble or are drowned out by background noise.

From BBC Jan. 13, 2024

This set off the loudest bout of wailing yet, but the dragon obediently began to mumble words that Jack couldn’t understand.

From "Half Upon a Time" by James Riley

“I am appalled,” Smokey Robinson told the Daily Mail in a phone call Wednesday before reportedly devolving into mumbles about being contacted at home.

From Los Angeles Times May 8, 2025

Unfortunately for Fox, much of what Homan has to say is hard to understand, because he mumbles.

From Slate May 18, 2024

“I am a solitary hero. I am alone. I am a solitary hero. Alone,” he mumbles to himself in voice-over.

From New York Times May 9, 2024

So now, as his camels are scattered in the field, feeding on thick green bushes, Mr Mahdi sits in the shade of a tree and mumbles slowly the words on his screen.

From BBC Sep. 12, 2023

When I wait in line for the bathroom, I ask the cute guy in front of me who the funny-looking man on his shirt is, and he just mumbles something and walks away.

From "I Am Not Your Perfect Mexican Daughter" by Erika L. Sánchez

Why learn anything when the answer will always be one mumbled request away?

From The Wall Street Journal Jan. 24, 2026

Fed Chair Jerome Powell mumbled something about “ample reserves” and pointed back to 2019, when the repo market seized up overnight and forced the Fed to rush in with emergency cash.

From MarketWatch Dec. 2, 2025

But Mamdani’s speech was not the ritual of unity and healing they wanted and expected, and they were reduced to mumbled excuses about the microphone, his tone of voice and his inexperience.

From Salon Nov. 8, 2025

He awkwardly mumbled about sponsoring the World Cup.

From BBC Jan. 24, 2025

He leaned against the bed, face-down on the top, and mumbled, “This body is the worst.”

From Anya and the Nightingale by Sofiya Pasternack

Mollie Amkraut Mueller’s mumbling was starting to get on her husband’s nerves.

From The Wall Street Journal May 10, 2026

To test this idea, the researchers combined self-directed internal speech, described as quiet "mumbling," with a specialized working memory system.

From Science Daily Jan. 28, 2026

The revival has some acoustical static and moments of mumbling, but “Joe Turner’s Come and Gone” grows more lifelike and absorbing with each scene.

From Los Angeles Times Nov. 1, 2025

Elon Musk might be mumbling and hiding his pupils any time he gets near a stage, but that doesn't mean he lacks energy in the Oval Office.

From Salon Apr. 24, 2025

She repeated herself, mumbling in his ear, and this time he heard her clearly.

From "Atonement" by Ian McEwan

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