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

So my thought process was to come in and early in the day float her name subtly, and not be too adamant about it.

— Dalton Ross, Entertainment Weekly, 25 Sep. 2026
The Grammy winner was adamant in his Tuesday statement that he wouldn’t be drawn into discussion of the war in Gaza, arguing that his fans don’t come to his shows to hear about these issues.

— Tassanee Vejpongsa, Los Angeles Times, 20 Sep. 2026

Definition of adamant

Adjective

The collection’s attempt at provocation was perhaps best illustrated by a top with underboob exposure that seemed intended to signal a rebellious edge but came across as little more than an ill-fitting garment in search of a point of view.

— Rhonda Richford, Footwear News, 9 Oct. 2026
Now, Pugh has entered the chat with the most rebellious version yet.

— Anna Cafolla, Vogue, 7 Oct. 2026

Definition of rebellious

Adjective

The law permits the government to seek denaturalization when citizenship was illegally obtained or secured through concealment of a material fact or willful misrepresentation.

— Antonio María Delgado, Miami Herald, 9 Oct. 2026
In an act of something like willful, somewhat disturbing friendliness, or a desire not to have to deal with Leo the next time he’s locked out, Clive makes a copy of Leo’s key and installs a lock box by his door.

— Robert Lloyd, Los Angeles Times, 2 Oct. 2026

Definition of willful

Adjective

Bakker’s boyhood experience of the wild, unruly Pentecostal God might have matured into a due humility, a dumbstruck awe and a sense of wonder.

— David Von Drehle, Washington Post, 8 Oct. 2026
To the broadcast crews, the fans were guilty until proven innocent, helping perpetuate the unfounded label that Fever fans were hateful, unruly and even discriminatory.

— Jon Root OutKick, FOXNews.com, 3 Oct. 2026

Definition of unruly

Adjective

The recent rise in yields reflects concerns about stubborn inflation and hawkish central bank commentary, fueling expectations that interest rates could remain elevated for longer.

— Sarah Min,Davis Giangiulio,Sawdah Bhaimiya, CNBC, 2 Oct. 2026
Even so, scaling up could force Google and SpaceX to confront some stubborn physics.

— Peter Hall, Scientific American, 1 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

Conduct disorder affects children and teens and involves a consistent pattern of disobedient and aggressive behaviors.

— Kristen Rogers, CNN Money, 21 May 2026
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

Definition of disobedient

Browse Nearby Words

undirected

undisciplined

undisclosed

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Style

“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 11 Oct. 2026.

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Synonyms of undisciplined

adjective

Example Sentences

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