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 Babcock is the last chance Texaco for a gifted but undisciplined roster. — Allan Mitchell, New York Times, 20 July 2026 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 See All Example Sentences for undisciplined

Recent Examples of Synonyms for undisciplined

Adjective

Seems unlikely that Kiffin would be adamant that the Big Ten's nine-game conference schedule is dragging down their results.

— Ian Miller OutKick, FOXNews.com, 21 Oct. 2026
And Ballmer and the Clippers remain adamant the penalties—and the allegations of misconduct—are incorrect.

— Joshua Hong, Fortune, 20 Oct. 2026

Definition of adamant

Adjective

Converse and Vaquera are coming together again with a rebellious spirit.

— Jaden Thompson, Footwear News, 22 Oct. 2026
In the episode on the 1993 timeline, the team intervenes when a general’s rebellious teen son is targeted by a dangerous former gang member.

— Rosy Cordero, Deadline, 20 Oct. 2026

Definition of rebellious

Adjective

Under federal law, citizenship obtained through concealment of a material fact or willful misrepresentation can be revoked through civil denaturalization proceedings.

— Antonio María Delgado, Miami Herald, 22 Oct. 2026
As part of the jury’s ruling, Meta faced up to $5,000 for each willful violation, according to a news release about the verdict.

— Queenie Wong, Los Angeles Times, 21 Oct. 2026

Definition of willful

Adjective

The Austin ensemble makes minimalism feel enveloping and unruly on its latest record, where new melodic details are always emerging from a swarming mass of sound.

— Vanessa Ague, Pitchfork, 29 Oct. 2026
This is a strange, twisty book which, with its layers of narration and disturbing coda, feels almost impossible to translate to the screen—but this adaptation comes close, at least in echoing its wild, unruly spirit.

— Radhika Seth, Vogue, 29 Oct. 2026

Definition of unruly

Adjective

An honor that seems to bring things full circle for that stubborn little girl who dreamed of performing on stages around the world from her farm.

— Ilaria Perrotta, Vanity Fair, 24 Oct. 2026
How To Remove Leaf Stains With Chlorine Bleach Bleach is very effective at removing stubborn leaf stains, along with mildew and moss.

— Brandee Gruener, Southern Living, 23 Oct. 2026

Definition of stubborn

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

Macklemore's defiant remarks drew mixed reactions online, with some social media users applauding his outspoken activism while others questioned his motives and accused him of being out of touch.

— Lauryn Overhultz, FOXNews.com, 28 Oct. 2026
Israeli and American leaders have been sharpening their threats before elections in both countries, while Iranian leaders have remained defiant.

— Arkansas Online, Arkansas Online, 27 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 30 Oct. 2026.

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Synonyms of undisciplined

adjective

Example Sentences

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