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
New York built its lead in part through undisciplined Indiana fouls; the Pacers wanted to improve at defending without fouling while grabbing more rebounds.
—
Andrew Greif, NBC news, 23 May 2025
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
See All Example Sentences for undisciplined
Andrew Greif, NBC news, 23 May 2025
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
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
-
He was deported in 2015, after serving a six-year state prison term for convictions of inflicting corporal punishment, child cruelty, willful discharge of a firearm in a negligent manner and being a felon in possession of a firearm.—
Nate Gartrell,
Mercury News,
13 Aug. 2025
-
Distinguishing between honest errors and willful misconduct is key.—
Kelly Phillips Erb,
Forbes.com,
9 Aug. 2025
Adjective
-
For Baxter and the stubborn Scot, this marked, at last, the reality of war’s end.—
Charles Pellegrino,
Rolling Stone,
6 Aug. 2025
-
Here’s the case for Scorpio: Wednesday is suss, secretive, brooding, vengeful and stubborn.—
Lisa Stardust,
People.com,
6 Aug. 2025
Adjective
-
However, Coast Guard officials were adamant that FEMA makes the ultimate decision, and that FEMA’s choices may differ from the Coast Guard’s recommendations.—
Joseph States,
Chicago Tribune,
30 July 2025
-
However, she’s remained adamant that to pull off paying homage to the famed actress, everything must be done right.—
Angel Saunders,
People.com,
29 July 2025
Adjective
-
The story follows Bárbara, rebellious and broke, who fakes her way into a convent for a private room and some peace—only to find herself on an unexpected spiritual journey.—
Anna Marie de la Fuente,
Variety,
16 Aug. 2025
-
The town’s rebellious spirit and dreamy beach backdrop attracted a who’s who in music, from Duke Ellington in the 1920s to Led Zeppelin, who skipped Woodstock in 1969 to play the Asbury Park Convention Hall.—
Jen Murphy,
Travel + Leisure,
15 Aug. 2025
Adjective
-
Tariffs are hammering its balance sheet and it’s burdened by an unruly European brand structure.—
Mark Phelan,
USA Today,
15 Aug. 2025
-
Their branches stretch in all directions like unruly cowlicks.—
Maggie Heyn Richardson,
Southern Living,
14 Aug. 2025
Adjective
-
In a 1,500-word letter to Seven & i’s board on Wednesday, Couche-Tard said the Japanese retailer was uncooperative in meetings and did not provide enough information to move the deal forward.—
Zinnia Lee,
Forbes.com,
17 July 2025
-
Officers located multiple victims shot in an alley in the 1200 block of west 78th Street who were initially uncooperative, according to a police report.—
Deanese Williams-Harris,
Chicago Tribune,
1 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
-
In its 56th edition, the photography festival, running until 5th October, embraces the provocatively defiant theme Disobedient Images, under the directorship of Christoph Wiesner.—
Lee Sharrock,
Forbes.com,
7 Aug. 2025
-
Even postgrads, navigating early adulthood in a shifting economic landscape, leaned into the aesthetic, dressing with a kind of defiant playfulness that pushed back against the pressure to look older.—
Alexandra Jane,
Essence,
31 July 2025
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 20 Aug. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share