undid
ˌən-ˈdid 
ˈən-
; undone
ˌən-ˈdən
ˈən-
; undoing
ˌən-ˈdü-iŋ
ˈən-
; undoes
ˌən-ˈdəz,
ˈən-
1
: to open or loosen by releasing a fastening
undid her jacket
2
: to make of no effect or as if not done : make null : reverse
The damage cannot be undone.
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
Croatia’s 37-year-old Ivan Perisic opened the scoring, his strike spurring Zlatko Dalic’s side on to a fantastic 15 minutes, only for them to be undone by a foul that gave Ronaldo the chance to level from the spot.
—
Anantaajith Raghuraman,
New York Times,
4 July 2026
Wall Street analysts also lament his stance on forward guidance (or lack thereof), saying its reduction undoes transparency at the central bank.
—
Eleanor Pringle,
Fortune,
3 July 2026
Well, Ariana seems to remember, whereas Hudson is determined to just undo the breakup and pretend like none of it ever happened.
—
Tom Smyth,
Vulture,
2 July 2026
Disability organisations including The Arc and the Council for Exceptional Children have warned the change risks shifting special education from an education framework to a medical one, undoing decades of progress toward integration in schools.
—
Keely Cat-Wells,
Forbes.com,
1 July 2026
See All Example Sentences for undo
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Anantaajith Raghuraman,
New York Times,
4 July 2026
Wall Street analysts also lament his stance on forward guidance (or lack thereof), saying its reduction undoes transparency at the central bank.
—
Eleanor Pringle,
Fortune,
3 July 2026
Well, Ariana seems to remember, whereas Hudson is determined to just undo the breakup and pretend like none of it ever happened.
—
Tom Smyth,
Vulture,
2 July 2026
Disability organisations including The Arc and the Council for Exceptional Children have warned the change risks shifting special education from an education framework to a medical one, undoing decades of progress toward integration in schools.
—
Keely Cat-Wells,
Forbes.com,
1 July 2026
See All Example Sentences for undo
Cite this Entry
“Undo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undo. Accessed 5 Jul. 2026.
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