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 focus on tariffs also comes after Sen. Tim Kaine’s (D-Va.) resolution to undo Trump’s 25 percent tariff on Canadian imports passed with the support of four Senate Republicans, dealing a blow to the president in the process.
—
Al Weaver, The Hill, 3 Apr. 2025
Trump announced a baseline 10% tax on nearly all goods imported to the U.S. from every country in the world, undoing the decades-long era of mostly free global trade long supported by the United States.
—Kate Linthicum, Los Angeles Times, 3 Apr. 2025
One of the best seasons in the history of the UC Irvine men’s basketball program ended in heartbreak, undone by errant free throws and a point-blank miss as time expired.
—Israel Schuman, Oc Register, 3 Apr. 2025
There is no reason to apply hindsight and undo the settlement, which was upheld in court, the city maintains.
—Linda Robertson, Miami Herald, 1 Apr. 2025
See All Example Sentences for undo
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Al Weaver, The Hill, 3 Apr. 2025
Trump announced a baseline 10% tax on nearly all goods imported to the U.S. from every country in the world, undoing the decades-long era of mostly free global trade long supported by the United States.
—Kate Linthicum, Los Angeles Times, 3 Apr. 2025
One of the best seasons in the history of the UC Irvine men’s basketball program ended in heartbreak, undone by errant free throws and a point-blank miss as time expired.
—Israel Schuman, Oc Register, 3 Apr. 2025
There is no reason to apply hindsight and undo the settlement, which was upheld in court, the city maintains.
—Linda Robertson, Miami Herald, 1 Apr. 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 11 Apr. 2025.
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