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 Trump administration has started undoing over 30 environmental rules that were put in place by the previous administration.
—
Ken Silverstein, Forbes, 23 Mar. 2025
Yet the Democrats hide behind the doors of House Economic Matters chambers and vote to undo 50 years of conservation history.
—Reader Commentary, Baltimore Sun, 21 Mar. 2025
Countries like Thailand and Germany are working to undo their plans to legalize marijuana.
—Thomas G. Moukawsher, Newsweek, 21 Mar. 2025
Proponents of the measure on Tuesday pointed directly to President Donald Trump’s efforts to undo many of the nation’s longstanding anti-pollution regulations through his administration’s overhaul of the Environmental Protection Agency.
—John Moritz, Hartford Courant, 19 Mar. 2025
See All Example Sentences for undo
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Ken Silverstein, Forbes, 23 Mar. 2025
Yet the Democrats hide behind the doors of House Economic Matters chambers and vote to undo 50 years of conservation history.
—Reader Commentary, Baltimore Sun, 21 Mar. 2025
Countries like Thailand and Germany are working to undo their plans to legalize marijuana.
—Thomas G. Moukawsher, Newsweek, 21 Mar. 2025
Proponents of the measure on Tuesday pointed directly to President Donald Trump’s efforts to undo many of the nation’s longstanding anti-pollution regulations through his administration’s overhaul of the Environmental Protection Agency.
—John Moritz, Hartford Courant, 19 Mar. 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 2 Apr. 2025.
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