- 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.
With an ample majority of the 117 members present in the 130-seat chamber, lawmakers undid a rule that since 2020 had limited the president's ability to impose states of emergency.
From Barron's ● May 27, 2026
But her death undid him, and he found his love for Emma reawakened by remorse.
From The Wall Street Journal ● Jan. 16, 2026
On Monday, the board undid two mistakes that should never have been made.
From BBC ● Jan. 5, 2026
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
She opened the box, pulled out a doll-size perfume bottle, undid the stopper and smelled.
From "How the García Girls Lost Their Accents" by Julia Alvarez
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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.