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
There are two ways, Levitt said, that Newsom and fellow Democrats could undo the commission’s handiwork.
—
Mark Barabak, Mercury News, 19 July 2025
For champions of workforce diversity, who feel their work is being undone, this is a difficult time.
—Harvard Business Review, 18 July 2025
The decision by a panel of the federal appeals court in Washington undoes an attempt to wrap up more than two decades of military prosecution beset by legal and logistical troubles.
—Mark Sherman, arkansasonline.com, 12 July 2025
The ruling preserved critical preventive care coverage but affirmed Kennedy's authority to control the task force—such as replacing members and undoing recommendations.
—ArsTechnica, 11 July 2025
See All Example Sentences for undo
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Mark Barabak, Mercury News, 19 July 2025
For champions of workforce diversity, who feel their work is being undone, this is a difficult time.
—Harvard Business Review, 18 July 2025
The decision by a panel of the federal appeals court in Washington undoes an attempt to wrap up more than two decades of military prosecution beset by legal and logistical troubles.
—Mark Sherman, arkansasonline.com, 12 July 2025
The ruling preserved critical preventive care coverage but affirmed Kennedy's authority to control the task force—such as replacing members and undoing recommendations.
—ArsTechnica, 11 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 29 Jul. 2025.
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