undisciplined
adjective
un·dis·ci·plined
ˌən-ˈdi-sə-plənd 
: lacking in discipline or self-control
undisciplined behavior
an unruly and undisciplined child
Examples of undisciplined in a Sentence
Recent Examples on the Web
But not by throwing up; that was too messy—that behavior was for girls with eating disorders, girls who were weak and undisciplined.
—
Janine Rubenstein, Peoplemag, 25 Sep. 2023
Coach Sean Payton has not been able to fix quarterback Russell Wilson, and worse yet, his team looks undisciplined and sloppy.
—C.j. Doon, Baltimore Sun, 19 Sep. 2023
But even when the speech texts make allowances for Biden’s limitations and his suppressed stutter, the president can still spoil everything with an undisciplined ad lib.
—Walter Shapiro, The New Republic, 19 Sep. 2023
DeRuyter will bring a lot of pressure, though that didn’t go well for the undisciplined Red Raiders last week, and Nix’s ability to extend plays and run could neutralize that to an extent.
—oregonlive, 8 Sep. 2023
The situation poses practical challenges for a famously undisciplined candidate running a major campaign while also preparing for multiple criminal trials, two brought by special counsel Jack Smith.
—Isaac Arnsdorf and Josh Dawsey, Anchorage Daily News, 6 Aug. 2023
In another incident, the suit describes a student with multiple accounts of physical and verbal bullying that had gone undisciplined slapping an eighth grade student and trying to assault a teacher.
—Tim Stelloh, NBC News, 7 July 2023
At the same time, Crisp said, Watkins as a former soldier saw police as making undisciplined mistakes by being unprepared to manage the crowd and provoking it with tear gas, and then complaining about the physical risks of their jobs afterward.
—Spencer S. Hsu, Anchorage Daily News, 26 May 2023
Benn, 33, was thrown out of the game for an undisciplined penalty after slashing Knights' Mark Stone, hitting him in the head.
—Natasha Dye, Peoplemag, 24 May 2023
See More
Janine Rubenstein, Peoplemag, 25 Sep. 2023
Coach Sean Payton has not been able to fix quarterback Russell Wilson, and worse yet, his team looks undisciplined and sloppy.
—C.j. Doon, Baltimore Sun, 19 Sep. 2023
But even when the speech texts make allowances for Biden’s limitations and his suppressed stutter, the president can still spoil everything with an undisciplined ad lib.
—Walter Shapiro, The New Republic, 19 Sep. 2023
DeRuyter will bring a lot of pressure, though that didn’t go well for the undisciplined Red Raiders last week, and Nix’s ability to extend plays and run could neutralize that to an extent.
—oregonlive, 8 Sep. 2023
The situation poses practical challenges for a famously undisciplined candidate running a major campaign while also preparing for multiple criminal trials, two brought by special counsel Jack Smith.
—Isaac Arnsdorf and Josh Dawsey, Anchorage Daily News, 6 Aug. 2023
In another incident, the suit describes a student with multiple accounts of physical and verbal bullying that had gone undisciplined slapping an eighth grade student and trying to assault a teacher.
—Tim Stelloh, NBC News, 7 July 2023
At the same time, Crisp said, Watkins as a former soldier saw police as making undisciplined mistakes by being unprepared to manage the crowd and provoking it with tear gas, and then complaining about the physical risks of their jobs afterward.
—Spencer S. Hsu, Anchorage Daily News, 26 May 2023
Benn, 33, was thrown out of the game for an undisciplined penalty after slashing Knights' Mark Stone, hitting him in the head.
—Natasha Dye, Peoplemag, 24 May 2023
See More
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undisciplined.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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
Dictionary Entries Near undisciplined
Cite this Entry
“Undisciplined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undisciplined. Accessed 2 Dec. 2023.
Copy Citation
More from Merriam-Webster on undisciplined
Thesaurus: All synonyms and antonyms for undisciplined
Love words? Need even more definitions?
Merriam-Webster unabridged
Share