verb
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to render weak or ineffective, as an argument
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to take away the legal force or effectiveness of; annul, as a contract
Other Word Forms
- invalidation noun
- invalidator noun
Etymology
Origin of invalidate
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.
A finding of undue influence can invalidate a will or trust if your grandmother was pressured, manipulated or dependent on your mother.
From MarketWatch • Mar. 30, 2026
They say the new guidance violates multiple federal laws, including laws that govern federal spending and rule changes, and are asking the federal court to immediately invalidate the guidance as unlawful.
From Los Angeles Times • Mar. 16, 2026
The courts may invalidate specious claims that certain imports threaten national security.
From The Wall Street Journal • Mar. 9, 2026
Trade Representative Jamieson Greer said the Court’s decision wouldn’t invalidate deals the U.S. has already struck.
From Barron's • Feb. 23, 2026
“Like, that doesn’t invalidate it, right? Your parents can get divorced and it doesn’t mean anything in the long run.”
From "Far from the Tree" by Robin Benway
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.
