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
Meanwhile, on the court, USC was looking undisciplined among the refined style of play that UCLA had settled into.
—
Haley Sawyer, Oc Register, 8 Mar. 2026
After leading the Kings to a franchise-best 48 wins and 105 points in his first full season as coach, Hiller failed to replicate that success with a team that has appeared unorganized and undisciplined for much of the season.
—Los Angeles Times, 1 Mar. 2026
The unconscious Moon moves through your 9th House of Distance, opposing undisciplined Uranus in your conversation zone.
—Tarot.com, Sun Sentinel, 9 Feb. 2026
Meanwhile, the Gators struggled mightily in the trenches during Billy Napier’s four-year tenure, posting three losing seasons marked by inconsistency and undisciplined play up front.
—Edgar Thompson, The Orlando Sentinel, 9 Feb. 2026
See All Example Sentences for undisciplined
Haley Sawyer, Oc Register, 8 Mar. 2026
After leading the Kings to a franchise-best 48 wins and 105 points in his first full season as coach, Hiller failed to replicate that success with a team that has appeared unorganized and undisciplined for much of the season.
—Los Angeles Times, 1 Mar. 2026
The unconscious Moon moves through your 9th House of Distance, opposing undisciplined Uranus in your conversation zone.
—Tarot.com, Sun Sentinel, 9 Feb. 2026
Meanwhile, the Gators struggled mightily in the trenches during Billy Napier’s four-year tenure, posting three losing seasons marked by inconsistency and undisciplined play up front.
—Edgar Thompson, The Orlando Sentinel, 9 Feb. 2026
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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There needs to be a willful investment in skills engagement.—
Prashant Darisi,
Forbes.com,
26 May 2026
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Tuesday, Brown showed exacerbation at what appears to be Boyne’s continuing and willful violation of court orders.—
Edmund H. Mahony,
Hartford Courant,
26 May 2026
Adjective
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Researchers have been looking into ways to reduce the stubborn inflammation HIV causes in the central nervous system.—
Smita S. Iyer,
The Conversation,
8 June 2026
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The findings, published in 2025 in Brain Stimulation, point to a fundamentally new way of treating one of the most stubborn psychiatric conditions, using a miniaturized implant that delivers brief bursts of stimulation only during key moments of exposure therapy.—
Samantha Agate,
Fort Worth Star-Telegram,
8 June 2026
Adjective
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Officials with the Georgia Department of Transportation have been adamant that many of the major road closures and resurfacing projects are unrelated to the World Cup, and therefore are on a multi-year timeline.—
Irene Wright,
USA Today,
29 May 2026
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Healthcare advocates are equally adamant.—
Dan Walters,
Mercury News,
28 May 2026
Adjective
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In others, the rebellious teenager drinks elsewhere.—
Thomas Lake,
AJC.com,
4 June 2026
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For a distillery known as much for its rebellious personality as its whisky, bringing back a bottle called Yellow Submarine feels pretty on-brand.—
Emily Price,
Forbes.com,
1 June 2026
Adjective
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In exchange, Tisch has advocated for the security perimeter, citing the need to control against rowdy crowds that have at times become violent and unruly.—
ABC News,
ABC News,
10 June 2026
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After the San Antonio Spurs spoiled the party with a 115-111 win, many unruly Knicks fans took out their frustrations in the streets by creating as much chaos as possible.—
Mark Harris OutKick,
FOXNews.com,
9 June 2026
Adjective
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Officers found the boy and the truck in the 900 block of Norton Street, police said, adding that he was intoxicated and uncooperative.—
Jason Green,
Mercury News,
28 May 2026
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The victims were uncooperative about specifics.—
Adam Harrington,
CBS News,
24 May 2026
Adjective
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Rising gas prices and an unpopular war in Iran have infuriated prominent MAGA figures online, but in terms of GOP elections, the president has been able to elbow out critics in Congress and disobedient legislators in red states.—
Phillip M. Bailey,
USA Today,
17 May 2026
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And as part of their initiation into the ruling class, Plums are made complicit in Gilead’s barbaric justice system, cheering for the corporal punishment of disobedient classmates and the men of low status caught salivating (or worse) over them.—
Judy Berman,
Time,
8 Apr. 2026
Adjective
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The great-grandson of the founder of the Islamic Republic struck a defiant tone in an interview with CNN on Thursday, saying Iran shouldn’t compromise on its demands to end the war.—
Frederik Pleitgen,
CNN Money,
5 June 2026
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The candidate, wearing Nikes and a suit but no tie — not too buttoned up — struck a defiant tone.—
Lia Russell,
Sacbee.com,
3 June 2026
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 12 Jun. 2026.
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