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
At its core, this undisciplined play stems from a stagnant style of offense.
—
Julia Poe, Chicago Tribune, 19 June 2025
But Riordan said that proves an undisciplined and untrained militia could stand against the British.
—Chelsea Torres, FOXNews.com, 18 June 2025
Edmonton trailed Monday's game 2-0 entering the second period after a series of undisciplined errors gave the Panthers four first-period power plays.
—Tyler Everett, MSNBC Newsweek, 12 June 2025
Both also have the fatal flaws of being undisciplined, delighting in picking public fights and getting bored easily.
—Jim Waterson, semafor.com, 6 June 2025
See All Example Sentences for undisciplined
Julia Poe, Chicago Tribune, 19 June 2025
But Riordan said that proves an undisciplined and untrained militia could stand against the British.
—Chelsea Torres, FOXNews.com, 18 June 2025
Edmonton trailed Monday's game 2-0 entering the second period after a series of undisciplined errors gave the Panthers four first-period power plays.
—Tyler Everett, MSNBC Newsweek, 12 June 2025
Both also have the fatal flaws of being undisciplined, delighting in picking public fights and getting bored easily.
—Jim Waterson, semafor.com, 6 June 2025
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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The result is a book of willful delirium, one that deconstructs its own narrative.—
Literary Hub,
Literary Hub,
4 Sep. 2025
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Huger was ultimately charged with a DUI and DWI, negligently driving a vehicle in a careless and imprudent manner endangering property, life, and person, as well as recklessly driving a vehicle in wanton and willful disregard for the safety of persons and property.—
Liza Esquibias,
People.com,
2 Sep. 2025
Adjective
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Of all the bad-hair-day culprits, matted hair can be the most stubborn and frustrating.—
Grace McCarty,
Glamour,
5 Sep. 2025
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Spills can be blotted (never rubbed) with a dry cloth since the fabric is non-absorptive, and for more stubborn stains, dry cleaning is recommended.—
Zoë Sessums,
Architectural Digest,
4 Sep. 2025
Adjective
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As such, Mahomes evidently not only is immune to complacency but actually has become more adamant with success.—
Kansas City Star,
Kansas City Star,
4 Sep. 2025
-
After taking a year off to improve his health, Renfrow was adamant about playing for the Panthers.—
DIAMOND VENCES,
Charlotte Observer,
3 Sep. 2025
Adjective
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Written by Kaitlin Reilly and Dorian Keyes, the film follows a rebellious bad boy and a type-A overachiever who join forces to win the student body presidency – and maybe each other’s hearts along the way.—
Zac Ntim,
Deadline,
8 Sep. 2025
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In business, as in life, there are times when conformity is an asset, but in others, embracing your individuality, inhabiting your rebellious spirit and being a true trailblazer are what lead to success.—
Paul Fitzgerald,
Rolling Stone,
8 Sep. 2025
Adjective
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Several local agencies from neighboring towns were called in to assist in dispersing the unruly crowd, and no injuries were reported among the officers.—
Julia Bonavita,
FOXNews.com,
4 Sep. 2025
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The National Guard played a limited security role, providing security to federal buildings and agents in a square-mile section of downtown where protests had become unruly.—
Andy Rose,
CNN Money,
3 Sep. 2025
Adjective
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As investigators began searching for the husband and 4-year-old, Miller became uncooperative and was taken to the hospital for evaluation, Campbell said.—
Saleen Martin,
USA Today,
28 Aug. 2025
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No one wants to appear uncooperative.—
Benjamin Laker,
Forbes.com,
28 Aug. 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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The trio – who had never appeared together in public before – formed the defiant face of an emerging bloc of illiberal leaders determined to push back against Western rules and tilt the global balance of power in their favor.—
Nectar Gan,
CNN Money,
4 Sep. 2025
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While Massie remains defiant, the episode highlights how Trump’s threats alone can destabilize even entrenched incumbents.—
Samantha-Jo Roth,
The Washington Examiner,
1 Sep. 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 9 Sep. 2025.
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