UNDISCIPLINED Synonyms: 117 Similar and Opposite Words

undisciplined

adjective

Definition of undisciplined

as in adamant

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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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of undisciplined McCain called her ex-colleagues 's‑‑‑‑y and undisciplined' during the on-air discussion. — Joey Nolfi, Entertainment Weekly, 17 June 2026 The outfielder’s at-bats were largely undisciplined, and judging by the entirety of his turbulent 2025 season, Veen clearly lacked the off-field maturity to be ready for his call-up. — Kyle Newman, Denver Post, 30 Apr. 2026 But also, a problem for our team is undisciplined fouling at times. — Paul Sullivan, Chicago Tribune, 7 Apr. 2026 Miami kept pace early thanks to a similarly efficient start by Adebayo (eight points in the first 98 seconds) and some undisciplined Celtics defense, which gifted the Heat 10 trips to the foul line in the opening eight minutes. — Zack Cox, Boston Herald, 2 Apr. 2026 See All Example Sentences for undisciplined

Recent Examples of Synonyms for undisciplined

Adjective

Schnell was adamant that the film crew couldn’t provide any help to him.

— Georg Szalai, HollywoodReporter, 17 Oct. 2026
Lander was adamant that rezonings didn’t have to go the way of Williamsburg.

— Kim Velsey, Curbed, 9 Oct. 2026

Definition of adamant

Adjective

The shoes appeared similar to the popular DSquared 2 Riri heeled sandals, which are also a sleek, seductive and rebellious style with towering heels and straps that wrap around the foot and ankle with super-thin leather ties.

— Karla Rodriguez, Footwear News, 16 Oct. 2026
Suzanne’s kind of rebellious temperament brought a lucidity to that character.

— Ryan Lattanzio, IndieWire, 15 Oct. 2026

Definition of rebellious

Adjective

On Thursday, attorneys from Jablonska's estate were trying to get access to Stevenson's financial records for the civil case, and were seeking to amend their wrongful death lawsuit to allege willful and wanton conduct and pursue punitive damages.

— Adam Harrington, CBS News, 15 Oct. 2026
Taylor was later found in willful contempt for violating their divorce terms and ordered to pay $70,000 to cover Shumpert’s legal fees.

— Preezy Brown, VIBE.com, 12 Oct. 2026

Definition of willful

Adjective

The vast crowds that once watched the killings would often become unruly.

— the Monitor's Editorial Board, Christian Science Monitor, 14 Oct. 2026
According to the Federal Aviation Administration, there have been 1,331 reports of unruly passengers on airplanes so far this year.

— Alexandra Skores, CNN Money, 12 Oct. 2026

Definition of unruly

Adjective

The military prison study assessed whether the gloves could be used effectively to forcibly remove combative prisoners from their cells, to respond to disturbances in common areas and to transport uncooperative inmates.

— ABC News, ABC News, 6 Oct. 2026
Congress could claw back some of its authority if committee chairs were prepared to subpoena those who refuse to testify, direct witnesses to answer pertinent questions, and pursue contempt proceedings against uncooperative witnesses.

— David Wippman, Washington Post, 5 Oct. 2026

Definition of uncooperative

Adjective

Now, as more schools like Central Middle station officers in their hallways, educators can turn to law enforcement when students are disobedient, even if the children are young or pose minimal threat.

— Kristian Hernández, San Antonio Express-News, 15 Oct. 2026
Conduct disorder affects children and teens and involves a consistent pattern of disobedient and aggressive behaviors.

— Kristen Rogers, CNN Money, 21 May 2026

Definition of disobedient

Adjective

From men wearing pink to push back against the pressures of toxic masculinity to women pushing back against unrealistic body standards, pink has become a color of defiant empathy.

— Roy Stephen Canivel, Footwear News, 15 Oct. 2026
Hazlewood broke the defiant stand between Markram and Wiaan Mulder that started late Monday and endured for nearly two more hours on Tuesday.

— ABC News, ABC News, 13 Oct. 2026

Definition of defiant

Browse Nearby Words

undirected

undisciplined

undisclosed

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“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 21 Oct. 2026.

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Synonyms of undisciplined

adjective

Example Sentences

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