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

With its choppy layers, tousled texture, and extra length at the nape, this wolf cut brought a rebellious twist to her usual regal aesthetic.

— Amanda Le, InStyle, 4 Nov. 2026
The selection also features Dutch director Sabine Lubbe Bakker’s Premier Souffle, exploring whether a rebellious outsider can find her place in the world after years of isolation from her community.

— Melanie Goodfellow, Deadline, 30 Oct. 2026

Definition of rebellious

Adjective

At what point does separating the art from the artist become an exercise in willful amnesia?

— Maxwell Adler, Vanity Fair, 5 Nov. 2026
The smaller company won, with a jury determining willful infringement and a district court granting a permanent injunction preventing further sales.

— Coke Morgan Stewart, Fortune, 27 Oct. 2026

Definition of willful

Adjective

Each flight disruption could cost airlines as much as $250,000, on a par with the possible costs of dealing with an unruly passenger, said Philip Baum, a visiting professor of aviation security at Coventry University in England.

— ABC News, ABC News, 5 Nov. 2026
Her search for the soirée unfolds through a series of increasingly unruly hotel encounters, with The Scene Bag, The Tote Bag and the winter 2026 collection pulled into the plot along the way.

— Maggie Clancy, Footwear News, 2 Nov. 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

Caregivers for dementia patients, whether family members at home or employees in an institution, can face daily challenges from residents who may be uncooperative or agitated, but advocates emphasize that caregivers must stay patient and respectful.

— Robert McCoppin, Chicago Tribune, 5 Nov. 2026
But it can also be stymied by an uncooperative executive branch.

— Gibbs Knotts, The Conversation, 4 Nov. 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

Unfortunately, negotiating with Uber and DoorDash takes time, money, and lawyers, and though those repercussions might show up eventually, and maybe even prove effective, e-bike cowboys are getting bolder, faster, and more defiant by the day.

— Justin Davidson, Curbed, 5 Nov. 2026
As disturbing as the ordeal was, the 89-year-old remains defiant.

— CBS News, CBS News, 4 Nov. 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 8 Nov. 2026.

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Synonyms of undisciplined

adjective

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