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
However, circulation of these videos on social media and their subsequent amplification by local and national news outlets have further intensified the perception of a group of undisciplined and poorly trained agents operating with impunity.
—
Rick Pozniak, Boston Herald, 4 June 2025
In a last fart of immaturity, the Pens took undisciplined penalties and gave up three second-period power play goals in a 5-0 Game 5 loss.
—David J. Neal, Miami Herald, 4 June 2025
The Colts looked like a young team with a first-time head coach in all of the worst ways — they were undisciplined and ill-prepared for the moment.
—Derrik Klassen, The Athletic, 1 Jan. 2025
Related Stories The movie O’Neil has put together out of this footage, which premiered last night at Cannes, is by any real-world standard a slovenly and undisciplined piece of work.
—Owen Gleiberman, Variety, 19 May 2025
See All Example Sentences for undisciplined
Rick Pozniak, Boston Herald, 4 June 2025
In a last fart of immaturity, the Pens took undisciplined penalties and gave up three second-period power play goals in a 5-0 Game 5 loss.
—David J. Neal, Miami Herald, 4 June 2025
The Colts looked like a young team with a first-time head coach in all of the worst ways — they were undisciplined and ill-prepared for the moment.
—Derrik Klassen, The Athletic, 1 Jan. 2025
Related Stories The movie O’Neil has put together out of this footage, which premiered last night at Cannes, is by any real-world standard a slovenly and undisciplined piece of work.
—Owen Gleiberman, Variety, 19 May 2025
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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That range depends heavily on whether the infringement is deemed willful.—
Andrew Nusca,
Fortune,
29 July 2025
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The filing argued that the defense's choice of an inadequate extraction method, followed by the return of the phone to the driver, who continued to use it like normal, constituted willful destruction of evidence.—
Lars Daniel,
Forbes.com,
22 July 2025
Adjective
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Beneath its surface were deep, dark scars—grooves cut through the rock by old lava flows, now overgrown with stubborn green.—
Tess Moormans,
Travel + Leisure,
27 July 2025
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The fizzing reaction can help remove stubborn residues.—
Katie Rosenhouse,
Southern Living,
27 July 2025
Adjective
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Since camp got underway, he's been adamant that winning games is far more important than his personal stats.—
Kevin McCormick,
MSNBC Newsweek,
25 July 2025
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Liverpool communicated an interest in acquiring the Sweden international for around £120m, though Newcastle have been adamant for months that Isak is not for sale.—
David Ornstein,
New York Times,
22 July 2025
Adjective
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The chancellor is caught between febrile bond markets worried about government debt levels across advanced economies and rebellious Labour lawmakers who recently forced the government to pull back on reforms to welfare spending.—
Emma Burleigh,
Fortune,
22 July 2025
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Once Audrey Hepburn was seen in a pair of the prototypical capri pants, everyone wanted to own them, and de Lennart’s hero product was later donned by the likes of Marilyn Monroe and Elizabeth Taylor: appreciated for its originally rebellious intentions and modern-woman appeal.—
Stacia Datskovska,
Footwear News,
21 July 2025
Adjective
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The vaunting acclaim the retrospective elicited seems largely unwarranted, though in several brilliant sequences scattered throughout his work, the unruly Rozier achieved an impulsive kind of mastery.—
James Quandt,
The New York Review of Books,
31 July 2025
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Despite the unruly acronym, these trucks, vans, and buses play an important role in increasing business efficiency while cutting down on emissions.—
Earl Carr,
Forbes.com,
30 July 2025
Adjective
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In a 1,500-word letter to Seven & i’s board on Wednesday, Couche-Tard said the Japanese retailer was uncooperative in meetings and did not provide enough information to move the deal forward.—
Zinnia Lee,
Forbes.com,
17 July 2025
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Officers located multiple victims shot in an alley in the 1200 block of west 78th Street who were initially uncooperative, according to a police report.—
Deanese Williams-Harris,
Chicago Tribune,
1 June 2025
Adjective
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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
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An immaterial figure who lives where there is no light, his role is to kidnap children who are too noisy and disobedient to their parents' wishes.—
PhotoVogue,
Vogue,
27 June 2025
Adjective
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On Monday, asked about the poll proposal at an unrelated event, Adams was defiant.—
Oren Oppenheim,
ABC News,
14 July 2025
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Trump's defiant response in Butler, Penn., may have fueled his big Election Day gains among male voters.—
Susan Page,
USA Today,
11 July 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 6 Aug. 2025.
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