- past tense form of undo.
undid
Americanverb
verb
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Pamela Price was recalled in 2024 and replaced by Ursula Jones Dickson, who quickly undid many of Price’s signature policies.
From Los Angeles Times ● May 29, 2026
Unlike the long-ago transition to the cloud, which undid many existing software firms, incumbents aren’t being complacent this time around.
From Barron's ● Mar. 13, 2026
Collette, who has two teenage children and lives in Sydney, discusses the altar she keeps at home, the power of birth order and the mohair sweater that nearly undid her.
From The Wall Street Journal ● Dec. 15, 2025
How did public health backslide so hard that it undid decades of progress—and is there any hope we can get back on track?
From Slate ● Jul. 11, 2025
"You do not know the Lannisters as we do, my lord. King Stannis thought that Lord Tywin was a thousand leagues away as well, and it undid him."
From "A Clash of Kings" by George R.R. Martin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
