- 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
And whatever your case for tariffs is, the way we implemented them undid it completely.
From Slate ● Apr. 22, 2026
On Monday, the board undid two mistakes that should never have been made.
From BBC ● Jan. 5, 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
At that minute Lucile came back and undid his eyes.
From "The Heart is a Lonely Hunter" by Carson McCullers
![]()
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.