as in willful
behaving in a way that is not properly controlled, organized, serious, etc.; lacking discipline
He has been very undisciplined about studying. undisciplined children
Related Words
Relevance
Dissimilar Words
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
However, circulation of these videos on social media and their subsequent amplification by local and national news outlets have further intensified the perception of a group of undisciplined and poorly trained agents operating with impunity.
—
Rick Pozniak, Boston Herald, 4 June 2025
In a last fart of immaturity, the Pens took undisciplined penalties and gave up three second-period power play goals in a 5-0 Game 5 loss.
—David J. Neal, Miami Herald, 4 June 2025
The Colts looked like a young team with a first-time head coach in all of the worst ways — they were undisciplined and ill-prepared for the moment.
—Derrik Klassen, The Athletic, 1 Jan. 2025
Related Stories The movie O’Neil has put together out of this footage, which premiered last night at Cannes, is by any real-world standard a slovenly and undisciplined piece of work.
—Owen Gleiberman, Variety, 19 May 2025
See All Example Sentences for undisciplined
Rick Pozniak, Boston Herald, 4 June 2025
In a last fart of immaturity, the Pens took undisciplined penalties and gave up three second-period power play goals in a 5-0 Game 5 loss.
—David J. Neal, Miami Herald, 4 June 2025
The Colts looked like a young team with a first-time head coach in all of the worst ways — they were undisciplined and ill-prepared for the moment.
—Derrik Klassen, The Athletic, 1 Jan. 2025
Related Stories The movie O’Neil has put together out of this footage, which premiered last night at Cannes, is by any real-world standard a slovenly and undisciplined piece of work.
—Owen Gleiberman, Variety, 19 May 2025
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
-
Likewise, Elon Musk, one of the world's most effective transmitters of AGI hype, announced safety assurances that cleverly imply a willful or dangerous AI.—
Eric Siegel,
Forbes.com,
14 July 2025
-
Maya Hernandez was charged with involuntary manslaughter and two counts of willful cruelty to a child in the death on June 29 of the 1-year-old boy and the hospitalization of a 2-year-old who survived.—
Cristian Santana,
NBC news,
9 July 2025
Adjective
-
But earth sign parents can also lean toward being stubborn and strict, which may cause friction during a stand off or while navigating discipline or tough conversations.—
Kara Nesvig,
Parents,
15 July 2025
-
Economists also will keep an eye on shelter prices, which have been a stubborn component keeping readings higher.—
Jeff Cox,
CNBC,
14 July 2025
Adjective
-
But Galkin is adamant that because their focus was always the victims, Kohberger’s plea deal only changed one thing.—
Hunter Ingram,
Variety,
11 July 2025
-
The call came on what was the hottest day of the year in the U.K., but staff were adamant Moo needed picking up, much to Ford's mild annoyance.—
Jack Beresford,
MSNBC Newsweek,
8 July 2025
Adjective
-
The chancellor is caught between febrile bond markets worried about government debt levels across advanced economies and rebellious Labour lawmakers who recently forced the government to pull back on reforms to welfare spending.—
Emma Burleigh,
Fortune,
22 July 2025
-
Once Audrey Hepburn was seen in a pair of the prototypical capri pants, everyone wanted to own them, and de Lennart’s hero product was later donned by the likes of Marilyn Monroe and Elizabeth Taylor: appreciated for its originally rebellious intentions and modern-woman appeal.—
Stacia Datskovska,
Footwear News,
21 July 2025
Adjective
-
Whether Hong Kong’s notoriously unruly taxi sector will buy in remains to be seen.—
Clay Chandler,
Fortune,
19 July 2025
-
So far this year there have been more than 870 reports of unruly passengers on planes in the US, according to FAA data.—
Aaron Cooper,
CNN Money,
18 July 2025
Adjective
-
This image was a bit challenging to capture, due to uncooperative weather and the fact that the Orion constellation was beginning to set early along the western horizon.—
Miguel Claro,
Space.com,
24 June 2025
-
Others are deemed to be uncooperative with the U.S. in sharing law enforcement data or accepting back their removable nationals.—
Chad de Guzman,
Time,
5 June 2025
Adjective
-
These first two episodes also give us the first appearance of Uma Thurman’s character, Charley, who seems to be recruiting serial killers and taking out disobedient ones in the Tri-State area.—
Hunter Ingram,
Variety,
11 July 2025
-
An immaterial figure who lives where there is no light, his role is to kidnap children who are too noisy and disobedient to their parents' wishes.—
PhotoVogue,
Vogue,
27 June 2025
Adjective
-
On Monday, asked about the poll proposal at an unrelated event, Adams was defiant.—
Oren Oppenheim,
ABC News,
14 July 2025
-
Trump's defiant response in Butler, Penn., may have fueled his big Election Day gains among male voters.—
Susan Page,
USA Today,
11 July 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 30 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share