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
Cal also committed 13 penalties for 128 yards, a glut of mistakes that suggest undisciplined play further hindered everything the Bears hoped to accomplish.
—
Jeff Faraudo, Mercury News, 23 Nov. 2025
White disappointed for most of the season, playing an undisciplined style that often had him on the ground or otherwise not affecting plays.
—Doug Kyed, Boston Herald, 28 Oct. 2025
Penalties made a big difference — both ways Penalties hit Missouri hard against Alabama last week, and the Tigers continued to look undisciplined at times Saturday.
—Maddie Hartley, Kansas City Star, 19 Oct. 2025
An undisciplined, unproductive outing against the Jets in London at least momentarily provided reason to hit the pause button.
—Parker Gabriel, Denver Post, 17 Oct. 2025
See All Example Sentences for undisciplined
Jeff Faraudo, Mercury News, 23 Nov. 2025
White disappointed for most of the season, playing an undisciplined style that often had him on the ground or otherwise not affecting plays.
—Doug Kyed, Boston Herald, 28 Oct. 2025
Penalties made a big difference — both ways Penalties hit Missouri hard against Alabama last week, and the Tigers continued to look undisciplined at times Saturday.
—Maddie Hartley, Kansas City Star, 19 Oct. 2025
An undisciplined, unproductive outing against the Jets in London at least momentarily provided reason to hit the pause button.
—Parker Gabriel, Denver Post, 17 Oct. 2025
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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In that case, the charging order is violated (and the LLC could theoretically be held in contempt), but the debtor did not engage in any willful or malicious conduct because of the LLC's actions.—
Jay Adkisson,
Forbes.com,
30 Jan. 2026
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Especially in scenes featuring a band’s de facto leader and a willful drummer, there are also thematic echoes of Peter Jackson’s documentary about The Beatles, another example of the above dichotomy.—
Chris Jones,
Chicago Tribune,
29 Jan. 2026
Adjective
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Experts warn that the stubborn metric has long-term implications for learning.—
Kate Armanini,
Chicago Tribune,
26 Jan. 2026
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Wait 10 minutes before washing for milder stains or up to a week for more severe or stubborn stains.—
Brandee Gruener,
Southern Living,
26 Jan. 2026
Adjective
-
New York — Luigi Mangione will not face the death penalty for allegedly killing UnitedHealthcare CEO Brian Thompson in December 2024, a federal district judge ruled Friday, dealing a blow to US prosecutors who were adamant about pursuing the ultimate sentence.—
Kara Scannell,
CNN Money,
30 Jan. 2026
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DeSantis has been adamant that his administration broke no laws.—
Alexandra Glorioso,
Miami Herald,
29 Jan. 2026
Adjective
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No surprise, then, that so much of their work is fearlessly modern, whether outspoken and rebellious or confessional and erotic.—
Literary Hub,
Literary Hub,
22 Jan. 2026
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But Amy Madigan, who seemed like the rebellious, out-of-the-box pick for critics groups, made it into the hypercompetitive supporting actress category.—
Lindsey Bahr,
Chicago Tribune,
22 Jan. 2026
Adjective
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Kansas City records show that complaints about an unruly neighbor, Jeffrey Traviss King, began flowing in eight years ago, escalating over the last 11 months until this week’s fatal dispute.—
Jenna Ebbers,
Kansas City Star,
26 Jan. 2026
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The lights are back on at the Muppet Theatre, and Kermit the Frog is ready to wrangle Miss Piggy and the rest of his unruly ensemble for a brand-new special.—
Kennedy French,
Variety,
23 Jan. 2026
Adjective
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Richardson was uncooperative with deputies while being transported back to the Martinez Detention Facility, and he was given medication by the facility's medical staff, according to the sheriff's office.—
Carlos E. Castañeda,
CBS News,
9 Jan. 2026
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February’s planning could come apart, and someone could be uncooperative, which could challenge your confidence.—
Magi Helena,
Dallas Morning News,
6 Jan. 2026
Adjective
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President Trump has ordered hundreds of additional federal agents to Minneapolis and is threatening to involve the Insurrection Act which would allow the military to curtail protests and use force to jail disobedient protestors.—
Rick Pozniak,
Boston Herald,
17 Jan. 2026
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As a drone whirred overhead and hooded people spray-painted the building and its fixtures, the protestors advocated for more civilly disobedient methods.—
Dante Motley,
Austin American Statesman,
8 Jan. 2026
Adjective
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When summoned before a congressional committee in December, Noem struck a defiant tone.—
Arkansas Online,
Arkansas Online,
27 Jan. 2026
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Between the river’s source, entrusted to an order of Orthodox nuns, and its southern delta, where caviar bound for the Kremlin is harvested, the author journeys through a defiant country transformed by war, sanctions, and reinvigorated patriotism.—
The New Yorker,
New Yorker,
26 Jan. 2026
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 1 Feb. 2026.
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