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
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
Krypto, who also sports a red cape but behaves like an undisciplined puppy-school reject, borders on cutesy.
—David Rooney, HollywoodReporter, 8 July 2025
But Riordan said that proves an undisciplined and untrained militia could stand against the British.
—Chelsea Torres, FOXNews.com, 18 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
Omar Kelly, Miami Herald, 15 Sep. 2025
Krypto, who also sports a red cape but behaves like an undisciplined puppy-school reject, borders on cutesy.
—David Rooney, HollywoodReporter, 8 July 2025
But Riordan said that proves an undisciplined and untrained militia could stand against the British.
—Chelsea Torres, FOXNews.com, 18 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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In March 2024, Karen was arrested and 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,
10 Oct. 2025
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The three, from Southern California, were arrested and booked into Mono County Jail on suspicion of willful discharge of a firearm in a grossly negligent manner, a felony.—
Bay Area News Group,
Mercury News,
29 Sep. 2025
Adjective
-
Uninhibited by the European commitments of their rivals following last season’s dreary eighth-place finish, Massimiliano Allegri has wasted no time moulding the Rossoneri into a stubborn outfit that sit within two points of the summit after a 0-0 draw at Juventus before the international break.—
Jack Bantock,
New York Times,
17 Oct. 2025
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That damaging psychic weight of insecurity and self-blame seeps into our society and politics, where polls show a stubborn and longtime trend of declining faith in a better future.—
Nino Paoli,
Fortune,
11 Oct. 2025
Adjective
-
Whoever wins or doesn’t win, Markman is adamant that trophies don’t define us.—
Andre Gee,
Rolling Stone,
14 Oct. 2025
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Much to the dismay of Gen Z striving for success with a manageable work-life balance, CEOs are adamant that intense schedules are essential for anyone looking to make it in business.—
Emma Burleigh,
Fortune,
13 Oct. 2025
Adjective
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There's just something so irresistible about the lace-up flat with its air of rebellious discipline.—
Alex Sales,
Glamour,
12 Oct. 2025
-
Singer Kelis has always been rebellious and non-conforming.—
Elizabeth Ayoola,
Essence,
9 Oct. 2025
Adjective
-
The 1964 edition builds on that spirit, but the music is more seductively unruly, and more personal.—
Owen Gleiberman,
Variety,
9 Oct. 2025
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There, the trio tinkered with ultracold electronics to show that unruly quantum effects could be made macroscopic and controlled.—
Dan Garisto,
Scientific American,
7 Oct. 2025
Adjective
-
In court documents, the MSP denied wrongdoing by the trooper, alleging Pettway was difficult to deal with on the day in question, became uncooperative, used profanity and resisted arrest.—
Tresa Baldas,
Freep.com,
5 Sep. 2025
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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
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
-
Kurt Caz, a white South African social-media star with millions of followers across platforms, first gained popularity through filming his defiant tours of dangerous neighborhoods in countries such as Venezuela and Kenya.—
T. M. Brown,
New Yorker,
15 Oct. 2025
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In a defiant address to the nation on Monday night, Rajoelina said that he had been forced to move to a safe place because of threats to his life.—
CNN Money,
CNN Money,
14 Oct. 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 18 Oct. 2025.
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