undisciplined

adjective

un·​dis·​ci·​plined ˌən-ˈdi-sə-plənd How to pronounce undisciplined (audio)
: lacking in discipline or self-control
undisciplined behavior
an unruly and undisciplined child

Examples of undisciplined in a Sentence

Recent Examples on the Web
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.
McDaniel’s team is undisciplined. Omar Kelly august 16, Miami Herald, 16 Aug. 2025 An underrated concern: J.J. McCarthy successfully scrambled twice in his one-minute drill at the end of practice, seizing on open rushing lanes the defensive line left behind with an undisciplined pass rush. Andrew Callahan, Boston Herald, 15 Aug. 2025 On the one hand, they were undisciplined and unruly. Matthew Scogin, Forbes.com, 31 July 2025 Krypto, who also sports a red cape but behaves like an undisciplined puppy-school reject, borders on cutesy. David Rooney, HollywoodReporter, 8 July 2025 See All Example Sentences for undisciplined

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of undisciplined was in the 14th century

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Cite this Entry

“Undisciplined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undisciplined. Accessed 11 Sep. 2025.

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