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
In the end, that approach led to her undoing.
—
Rebecca Santana, Chicago Tribune, 7 Mar. 2026
In the end, that approach led to her undoing.
—ABC News, 6 Mar. 2026
The choice is somewhat surprising given his closeness to Rob, but Mark’s newfound suspicion of Eric seems to have been his undoing.
—Tom Smyth, Vulture, 27 Feb. 2026
But Open, Heaven also courses with youth’s great agony, the cruelty that learning to love should be inexorably followed by learning to grieve its undoing.
—Gabrielle Bellot, Literary Hub, 27 Feb. 2026
See All Example Sentences for undoing
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Rebecca Santana, Chicago Tribune, 7 Mar. 2026
In the end, that approach led to her undoing.
—ABC News, 6 Mar. 2026
The choice is somewhat surprising given his closeness to Rob, but Mark’s newfound suspicion of Eric seems to have been his undoing.
—Tom Smyth, Vulture, 27 Feb. 2026
But Open, Heaven also courses with youth’s great agony, the cruelty that learning to love should be inexorably followed by learning to grieve its undoing.
—Gabrielle Bellot, Literary Hub, 27 Feb. 2026
See All Example Sentences for undoing
Cite this Entry
“Undoing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undoing. Accessed 14 Mar. 2026.
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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