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
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Recent Examples of undisciplined
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
Meanwhile, on the court, USC was looking undisciplined among the refined style of play that UCLA had settled into.
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Haley Sawyer,
Oc Register,
8 Mar. 2026
After leading the Kings to a franchise-best 48 wins and 105 points in his first full season as coach, Hiller failed to replicate that success with a team that has appeared unorganized and undisciplined for much of the season.
—
Los Angeles Times,
1 Mar. 2026
See All Example Sentences for undisciplined
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
Meanwhile, on the court, USC was looking undisciplined among the refined style of play that UCLA had settled into.
—
Haley Sawyer,
Oc Register,
8 Mar. 2026
After leading the Kings to a franchise-best 48 wins and 105 points in his first full season as coach, Hiller failed to replicate that success with a team that has appeared unorganized and undisciplined for much of the season.
—
Los Angeles Times,
1 Mar. 2026
See All Example Sentences for undisciplined
Recent Examples of Synonyms for undisciplined
Adjective
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Value meets vision as the willful Sun activates your 2nd House of Finances in a quincunx to intense Pluto in your 9th House of Exploration.
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There is the willful weakness of Congress, the overblown power of the Supreme Court and the improbability of new Constitutional amendments.
Adjective
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The weather service’s forecast discussion for Kansas City said the stubborn heat could last through the Fourth of July.
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Against all odds, the stubborn housing market has become a hotspot for young talent.
Adjective
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While waiting to go to court, Zaayer remained adamant that Shawna needed to go to prison but was also convinced that David — who worked at the nearby jail — was protecting his wife from receiving an adequate punishment, per The Guardian.
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But Senate Majority Leader John Thune (R-SD) has been adamant that there are not enough votes in the Senate to pass the legislation, given the 60-vote filibuster threshold.
Adjective
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This could bring about sudden ideas, or trigger rebellious impulses and creative imagination.
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In 2000 at age 15, he was sent to live in Australia with a host family because his father thought Zhang was too rebellious to stay in China.
Adjective
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Several North Lake Tahoe beaches will be closed Saturday evening during the July 4 holiday due to what law enforcement officials described as unruly crowds of visiting teenagers.
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Britain, arguably, decided to cut its losses with the unruly thirteen colonies to better safeguard its more lucrative possessions in the Caribbean and South Asia.
Adjective
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Authorities said the two men were uncooperative with officers at the hospital.
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The uncooperative witness testimony was a blow to the defense, who also called two of their own expert witnesses to cast doubt on the federal investigation and testify that fireworks were the most likely cause of the fire.
Adjective
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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.
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And as part of their initiation into the ruling class, Plums are made complicit in Gilead’s barbaric justice system, cheering for the corporal punishment of disobedient classmates and the men of low status caught salivating (or worse) over them.
Adjective
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Femi was defiant as he was interviewed in the ring following his victory.
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Laurie Whitwell Were South Africa unlucky after defiant defensive display?
Cite this Entry
“Undisciplined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undisciplined. Accessed 5 Jul. 2026.
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