invalidate
verb
in·val·i·date
(ˌ)in-ˈva-lə-ˌdāt 
invalidated; invalidating; invalidates
: to make invalid
especially
: to weaken or destroy the cogency of
Examples of invalidate in a Sentence
actions that will invalidate the contract
The study invalidates earlier theories.
factors that may invalidate the test results
Recent Examples on the Web
China claims virtually the entire South China Sea, a key global trade and security route despite a 2016 international arbitration ruling initiated by the Philippines that invalidated those expansive claims based on the United Nations Convention on the Law of the Sea.
—
Arkansas Online, 30 May 2025
The decision would also invalidate a 10% tariff imposed on goods from nearly all countries.
—Max Zahn, ABC News, 29 May 2025
The plaintiffs also assert that Mr. Trump did not have the authority to stop federal funding for NPR and PBS, and his order should be invalidated as unconstitutional.
—Melissa Quinn, CBS News, 27 May 2025
The outcome keeps in place an Oklahoma court decision that invalidated a vote by a state charter school board to approve the St. Isidore of Seville Catholic Virtual School.
—Shane Croucher, MSNBC Newsweek, 22 May 2025
See All Example Sentences for invalidate
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Arkansas Online, 30 May 2025
The decision would also invalidate a 10% tariff imposed on goods from nearly all countries.
—Max Zahn, ABC News, 29 May 2025
The plaintiffs also assert that Mr. Trump did not have the authority to stop federal funding for NPR and PBS, and his order should be invalidated as unconstitutional.
—Melissa Quinn, CBS News, 27 May 2025
The outcome keeps in place an Oklahoma court decision that invalidated a vote by a state charter school board to approve the St. Isidore of Seville Catholic Virtual School.
—Shane Croucher, MSNBC Newsweek, 22 May 2025
See All Example Sentences for invalidate
Cite this Entry
“Invalidate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invalidate. Accessed 9 Jun. 2025.
Copy CitationKids Definition
invalidate
verb
in·val·i·date
(ˈ)in-ˈval-ə-ˌdāt
: to weaken or destroy the effect of
evidence invalidating their claim
Legal Definition
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