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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

“Never heard that before,” he said, because mumble, mumble, George-Washington-and-the-Sound-of-History roaring in his ears.

From Slate May 28, 2024

"I was in so much pain I couldn't talk, only mumble," she added.

From BBC Apr. 19, 2024

“It’s a mystery,” I mumble, my eyes on the cement floor.

From "The Tenth Mistake of Hank Hooperman" by Gennifer Choldenko

“Why are you talking to me?” she mumbles in faux outrage.

From Los Angeles Times Dec. 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 love mumbles and the Gower coast," she said.

From BBC Sep. 29, 2023

It is the name he mumbles when he is feverish in sleep and the one-word question when he needs to know I am near.

From Seattle Times May 5, 2023

"Don't," Yo mumbles to herself at the window, outlining her hairline with a contemplative index finger.

From "How the García Girls Lost Their Accents" by Julia Alvarez

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

After a period dominated by the mumbled bars of Souncloud rap, her precision was a breath of fresh air.

From BBC Jun. 27, 2025

When Ivan mumbled the words on the page as he followed along with his finger, Anya realized he wasn’t speaking Russian, or Hebrew, or any language she had ever heard of.

From Anya and the Dragon by Sofiya Pasternack

Exiting the event, Shulman shuffled out with the crowd, headed next to a TikTok Grammys party, mumbling to a fellow attendee that his company seemed to be “persona non grata.”

From The Wall Street Journal Mar. 28, 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

I made some sort of soothing reply, but with the licence of age she did not listen, hobbling away mumbling that it was her fault.

From "Nectar in a Sieve" by Kamala Markandaya

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