verb
-
to render weak or ineffective, as an argument
-
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.
Indeed, federal employees have a First Amendment right to talk to the press, courts have ruled as they’ve invalidated policies preventing it.
From Salon
Department of Veterans Affairs to build more than 2,500 units of housing on its West Los Angeles campus and invalidating a prestigious private school’s lease there.
From Los Angeles Times
In a pair of 2024 rulings, McCormick invalidated the 2018 package, which once loomed as historically large but have since been eclipsed by the tech tycoon's most recent Tesla package.
From Barron's
In 2022, however, the American Journal of Therapeutics, which had published the study, warned that suspicious data “appears to invalidate the findings” regarding ivermectin’s potential to decrease deaths.
From Salon
“The recent attack doesn’t invalidate that strategy; it reinforces it.”
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.
