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
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
And then Brady Tkachuk took an undisciplined penalty near the end of the first period that led to Toronto’s first power-play goal in 31 opportunities in closeout games since 2018.
—Joshua Kloke, New York Times, 2 May 2025
See All Example Sentences for undisciplined
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
And then Brady Tkachuk took an undisciplined penalty near the end of the first period that led to Toronto’s first power-play goal in 31 opportunities in closeout games since 2018.
—Joshua Kloke, New York Times, 2 May 2025
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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Cruz was the fourth of her parents’ eight children and willful from a young age.—
Rebecca Grant
June 24,
Literary Hub,
24 June 2025
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Importantly, and unlike the ICA, willful violations of the ADA can incur criminal penalties.—
Doug Criscitello,
Forbes.com,
12 May 2025
Adjective
-
All of which can be employed by Musk or anyone else using AI to target us with false political advertising tailored to our most stubborn biases, further dividing us, manipulating elections and solidifying what has already become a fascist state.—
Sal Recchi,
The Orlando Sentinel,
22 June 2025
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Then Curry, rattled by the monumental reverb of Kyrie’s shot, hurried into a stubborn approach on the ensuing possession, missed a desperate 3 over Kevin Love, who used his length and a rare display of defensive intensity to deny Curry a good look.—
David Aldridge,
New York Times,
22 June 2025
Adjective
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Football has typically accepted these lapses and quietly moved on, adamant that the use of performance-enhancing drugs (PED) is primarily a problem for other sports.—
Philip Buckingham,
New York Times,
20 June 2025
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Green groups are adamant EVs should be the only option.—
Neil Winton,
Forbes.com,
17 June 2025
Adjective
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From the start, Handy argues, the on-screen adventures in teen movies have been targeted to a double audience of rebellious teens and anxious adults.—
Hillary Kelly,
The Atlantic,
6 June 2025
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In addition to provoking rebellious and impulsive actions, this unpredictable synergy can abruptly derail plans.—
Valerie Mesa,
People.com,
4 June 2025
Adjective
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This top detangling brush is suitable for every hair texture, from tight coils to super straight hair types, as its innovative design effortlessly and thoroughly combs through all kinds of unruly strands.—
Olivia Cigliano,
Footwear News,
12 June 2025
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About 150 people have been arrested at the protests, which have included flareups of unruly clashes, vandalism and looting, but have remained limited to a few blocks in the city's downtown area.—
Edward Segarra,
USA Today,
12 June 2025
Adjective
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Several witnesses on scene were uncooperative and gave limited testimony, police said.—
Silas Morgan,
The Orlando Sentinel,
24 June 2025
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The Trump administration says the U.S. cannot appropriately vet visa applicants in countries with uncooperative governments or underdeveloped security systems.—
Charles Kurzman,
The Conversation,
5 June 2025
Adjective
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But this bulldog is just another disobedient lawyer, as far as Judge Kathleen Williams of the U.S. District Court for the Southern District of Florida is concerned.—
Orlando Sentinel,
The Orlando Sentinel,
24 June 2025
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The news organizations also found that Garrison employees frequently removed students from their classrooms and sent them to crisis rooms when the students were upset, disobedient or aggressive.—
Jennifer Smith Richards,
ProPublica,
20 May 2025
Adjective
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That’s what makes their fourth studio album, Lucius, almost defiant in its return to form.—
Marissa R. Moss,
Rolling Stone,
11 June 2025
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Asked about his potential exit at the weekend while on international duty for Germany, Ter Stegen was defiant.—
Tom Sanderson,
Forbes.com,
5 June 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 30 Jun. 2025.
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