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
Synonyms
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
Electoral victories can be undone, regulations weakened or eliminated entirely.
—
Aissa Dearing, JSTOR Daily, 4 Nov. 2024
Remember that some things can be done or said, but they cannot be undone.
—Meghan Rose, Glamour, 1 Nov. 2024
Trump’s plan is to undo that progress, throw billions of dollars of clean energy investment out the window and give other countries the economic opportunity, instead.
—Bill Weir, CNN, 1 Nov. 2024
Furthering Fair Housing rule that required HUD and states, counties and cities to pursue meaningful action to undo decades of housing discrimination.
—Marcus Baram, USA TODAY, 31 Oct. 2024
See all Example Sentences for undo 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Aissa Dearing, JSTOR Daily, 4 Nov. 2024
Remember that some things can be done or said, but they cannot be undone.
—Meghan Rose, Glamour, 1 Nov. 2024
Trump’s plan is to undo that progress, throw billions of dollars of clean energy investment out the window and give other countries the economic opportunity, instead.
—Bill Weir, CNN, 1 Nov. 2024
Furthering Fair Housing rule that required HUD and states, counties and cities to pursue meaningful action to undo decades of housing discrimination.
—Marcus Baram, USA TODAY, 31 Oct. 2024
See all Example Sentences for undo
Dictionary Entries Near undo
Cite this Entry
“Undo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undo. Accessed 1 Dec. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share