1
as in to paralyze
to deprive of courage or confidence
the sudden shriek undid the campers
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in to untie
to disengage the knotted parts of
undo a tangled shoelace
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in to disturb
to trouble the mind of; to make uneasy
the mere mention of the home invasion still had the power to undo her
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of undo
Of note, since Mastro left city government, all progress at Battery Park has been undone.
—
Voice Of The People, New York Daily News, 7 Jan. 2026
Using the rationale of undoing the districts drawn to enhance minority group voting power would put the 20th Congressional District in Broward and Palm Beach counties at the top of the list of districts that would be recrafted.
—Anthony Man, Sun Sentinel, 7 Jan. 2026
Some words cannot be unsaid, some actions cannot be undone.
—Shruti Mutalik, Baltimore Sun, 7 Jan. 2026
Meanwhile, survivors who sought to remain anonymous saw their names published, and attempts to obscure other information within the records could be undone with a simple copy and paste.
—Harmeet Kaur, CNN Money, 31 Dec. 2025
See All Example Sentences for undo
Recent Examples of Synonyms for undo
Verb
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Cuban officials acknowledged at the end of last year the country’s economy is yet again paralyzed due to fuel shortages and power stations constantly breaking down.—
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This week's protests are the biggest in three years, since nationwide demonstrations triggered by the death of a young woman in custody in late 2022 paralyzed Iran for weeks, with rights groups reporting hundreds killed.—
Verb
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Several minutes later, Chenoweth reappeared onstage, in a black Blondie sweatshirt and untied white sparkly sneakers.—
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There was a big debate about that part where a kid tells Agnes that her shoes are untied.—
Verb
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Rose tells Shaw that her community is concerned about sacred remains being disturbed.—
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The 34-year-old appeared to have deactivated her X account after disturbing posts on her account resurfaced online.—
Verb
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After scaring off the animal, one of the hikers, a physician, attempted to revive Kovatch, but did not find a pulse.—
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Don’t let the tackiness of this primer scare you.—
Verb
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Kelce unfastened the clasp on another necklace and then a third, before Chris Jones, his teammate for a decade, walked over and approached him.—
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Adama unfastened a padlock and loosened the chain securing the doors.—
Verb
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Take a seat on an icy throne—the cold never bothered you anyway.—
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Don’t bother wasting your money—using it more than once a day won’t yield ‘better’ or faster results.—
Verb
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The Secretary of State called the event an attempt to frighten public servants.—
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But monks there complained that the slain king was walking around at night, frightening them with strange sounds.—
Verb
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The acidic properties of this inexpensive, nontoxic, and eco-friendly household cleaner help to break down grease, loosen dried-on food, and neutralize funky odors.—
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Instead of stimulating the brain, alcohol slows it down and loosens inhibitions.—
Cite this Entry
“Undo.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undo. Accessed 12 Jan. 2026.
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