undid
ˌən-ˈdid 
ˈən-
; undone
ˌən-ˈdən
ˈən-
; undoing
ˌən-ˈdü-iŋ
ˈən-
1
: to open or loose by releasing a fastening
2
: to make of no effect or as if not done : make null : reverse
3
a
: to ruin the worldly means, reputation, or hopes of
a politician undone by scandal
b
: to disturb the composure of : upset
she's come undone
c
: to come open or apart
Examples of undo in a Sentence
You can't undo the past.
The damage cannot be undone.
He was undone by greed.
Recent Examples on the Web
The new policy has foreign students doing everything from requesting their columns be removed from student publications to painstakingly undoing any of their Instagram likes on pro-Palestinian or anti-Trump posts.
—
Maria Gracia Santillana Linares, Forbes.com, 2 Aug. 2025
Almost immediately, the businessman sought to undo the deal.
—Nancy Dillon, Rolling Stone, 1 Aug. 2025
The flurry of economic news this week will coincide with a legal test that could undo a major swathe of tariffs.
—Max Zahn, ABC News, 30 July 2025
Layer by magnetic layer, Abbott reveals the story of a family coming undone beneath the paralyzing weight of material pressures.
—Karin Slaughter, People.com, 29 July 2025
See All Example Sentences for undo
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Maria Gracia Santillana Linares, Forbes.com, 2 Aug. 2025
Almost immediately, the businessman sought to undo the deal.
—Nancy Dillon, Rolling Stone, 1 Aug. 2025
The flurry of economic news this week will coincide with a legal test that could undo a major swathe of tariffs.
—Max Zahn, ABC News, 30 July 2025
Layer by magnetic layer, Abbott reveals the story of a family coming undone beneath the paralyzing weight of material pressures.
—Karin Slaughter, People.com, 29 July 2025
See All Example Sentences for undo
Cite this Entry
“Undo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undo. Accessed 6 Aug. 2025.
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