as in willful
behaving in a way that is not properly controlled, organized, serious, etc.; lacking discipline
He has been very undisciplined about studying. undisciplined children
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Recent Examples of undisciplined
Long-percolating concerns about the massive and perhaps undisciplined tech-company investments in artificial-intelligence infrastructure and the lavish valuations bestowed on these businesses started to boil over last week.
—
Michael Santoli, CNBC, 27 Sep. 2025
McDaniels also upped their rate of pre-snap motion, going from 28.3% to 56.7%, per Sharp Football Analysis; all basic tests for an undisciplined defense like Miami’s.
—Andrew Callahan, Boston Herald, 16 Sep. 2025
This can lead to slow responses, suboptimal trade-offs and undisciplined reactions.
—Tom Strohl, Forbes.com, 15 Sep. 2025
And the Dolphins players are undisciplined, and the team’s leaders need to do a better job of making their presence felt.
—Omar Kelly, Miami Herald, 15 Sep. 2025
See All Example Sentences for undisciplined
Michael Santoli, CNBC, 27 Sep. 2025
McDaniels also upped their rate of pre-snap motion, going from 28.3% to 56.7%, per Sharp Football Analysis; all basic tests for an undisciplined defense like Miami’s.
—Andrew Callahan, Boston Herald, 16 Sep. 2025
This can lead to slow responses, suboptimal trade-offs and undisciplined reactions.
—Tom Strohl, Forbes.com, 15 Sep. 2025
And the Dolphins players are undisciplined, and the team’s leaders need to do a better job of making their presence felt.
—Omar Kelly, Miami Herald, 15 Sep. 2025
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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Penalties can reach up to roughly $51,500 per violation, along with multiyear bans on new visa petitions for willful breaches, according to DOL enforcement guidelines.—
Robert Alexander,
MSNBC Newsweek,
30 Oct. 2025
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Tessa Thompson stars as the willful heroine, married to a rather meek academic, George Tesman (Tom Bateman), who’s angling for an important university position.—
Stephanie Zacharek,
Time,
22 Oct. 2025
Adjective
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That individual brilliance which can produce a moment of magic to break open a stubborn defence is harder to come by.—
Liam Tharme,
New York Times,
31 Oct. 2025
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Be sure to pay extra attention to stubborn stains.—
Jennifer Beck Goldblatt,
Architectural Digest,
31 Oct. 2025
Adjective
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When asked about his name being mentioned as this season’s coaching carnage continues, Danielson — a native of Southern California and graduate of Azusa Pacific University east of Los Angeles — remained adamant in his commitment to Boise State.—
Shaun Goodwin,
Idaho Statesman,
30 Oct. 2025
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But Díaz-Balart, who sits on the House appropriations committee that helps draft spending bills, insists Republicans won’t cave to demands and is adamant short-term extensions are not the solution.—
Claire Heddles,
Miami Herald,
30 Oct. 2025
Adjective
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As for the Banks sisters, Ashley (Akira Akbar) works through a rebellious phase during her freshman year as Hilary (Coco Jones) goes on a journey of self-exploration.—
Natalie Oganesyan,
Deadline,
3 Nov. 2025
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To be clear, there is no sense that Rondón and Ugás are defending the old guard or suggesting that a docile, starving population pinioned under the grip of a dictatorship is big-picture preferable to a rebellious insurgency.—
Jessica Kiang,
Variety,
31 Oct. 2025
Adjective
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Reports of unruly visitor behavior have sparked public complaints and a rise in anti-foreigner sentiment that right-wing politicians have been quick to capitalize on.—
Micah McCartney,
MSNBC Newsweek,
25 Oct. 2025
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The Owensboro news media and some white onlookers insist that when the lady sheriff didn’t show up to act as executioner, there was anger in the press’s unmet expectations, which then was taken out on the crowd, with the reporters lying about the audience’s unruly behavior.—
Literary Hub,
Literary Hub,
16 Oct. 2025
Adjective
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Ashlee has remained uncooperative and has not confirmed Melodee’s location or welfare.—
Becca Longmire,
PEOPLE,
4 Nov. 2025
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Timeline narrows window of disappearance With only years-old photos of Melodee and an allegedly uncooperative mother, officials are working with scant details about the young girl.—
CNN.com Wire Service,
Mercury News,
27 Oct. 2025
Adjective
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Kennedy Tolson is the sly queen of side-eye as the disobedient new housemaid Nancy.—
Pam Kragen,
San Diego Union-Tribune,
16 Aug. 2025
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These first two episodes also give us the first appearance of Uma Thurman’s character, Charley, who seems to be recruiting serial killers and taking out disobedient ones in the Tri-State area.—
Hunter Ingram,
Variety,
11 July 2025
Adjective
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On Monday afternoon, Petro remained defiant.—
Nora Gámez Torres,
Miami Herald,
21 Oct. 2025
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This Irish American neighborhood is famous for its quirky upside-down traffic light, where green proudly sits above red—a symbol of its defiant community spirit.—
Lauren Dana Ellman,
Travel + Leisure,
19 Oct. 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 7 Nov. 2025.
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