undoing
noun
un·do·ing
ˌən-ˈdü-iŋ 
1
: an act of loosening : unfastening
2
: ruin
also
: a cause of ruin
greed was to prove his undoing
Examples of undoing in a Sentence
My quick temper was my undoing.
His quick temper helped lead to his undoing.
The incident resulted in her undoing.
Recent Examples on the Web
Based on real-life events, Barry Levinson's gangster drama casts De Niro as former best friends turned rivals Frank Costello and Vito Genovese, where a violent betrayal leads to an undoing of the New York underworld.
—
Brian Truitt, USA Today, 14 June 2025
In the upcoming film, Oscar Isaac stars as Dr. Victor Frankenstein, a brilliant but egotistical scientist who brings a creature (Jacob Elordi) to life in a monstrous experiment that ultimately leads to the undoing of both the creator and his tragic creation.
—Matt Grobar, Deadline, 31 May 2025
The 17th hole proved to be Hatton’s undoing as the Englishman drove the ball into the rough on the downslope of a greenside bunker.
—Kyle Feldscher, CNN Money, 15 June 2025
As with the first meeting, the third quarter proved to be the Sparks’ undoing.
—Anthony De Leon, Los Angeles Times, 2 June 2025
See All Example Sentences for undoing
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Brian Truitt, USA Today, 14 June 2025
In the upcoming film, Oscar Isaac stars as Dr. Victor Frankenstein, a brilliant but egotistical scientist who brings a creature (Jacob Elordi) to life in a monstrous experiment that ultimately leads to the undoing of both the creator and his tragic creation.
—Matt Grobar, Deadline, 31 May 2025
The 17th hole proved to be Hatton’s undoing as the Englishman drove the ball into the rough on the downslope of a greenside bunker.
—Kyle Feldscher, CNN Money, 15 June 2025
As with the first meeting, the third quarter proved to be the Sparks’ undoing.
—Anthony De Leon, Los Angeles Times, 2 June 2025
See All Example Sentences for undoing
Cite this Entry
“Undoing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undoing. Accessed 22 Jul. 2025.
Copy CitationKids Definition
undoing
noun
un·do·ing
ˌən-ˈdü-iŋ
1
: an act or instance of unfastening
2
a
: ruin entry 1 sense 1
parental neglect helped lead to their undoing
b
: a cause of ruin
my quick temper was my undoing
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