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
Meanwhile, the Schrems II ruling invalidated the EU–U.S. Privacy Shield, creating uncertainty for companies relying on transatlantic data flows.
—
Sindhya Valloppillil, Forbes.com, 15 July 2025
The state Auditor’s Office cannot pass laws, cannot invalidate laws, cannot force the Legislature to accept its recommendations for improvement.
—Jeanne M. Kempthorne, Boston Herald, 15 July 2025
House Bill 495, sponsored by Republican Rep. David Hale, would invalidate Beshear's 2024 order banning the use of state and federal funds on conversion therapy for minors.
—Hannah Pinski, The Courier-Journal, 2 July 2025
In France and Germany, only a single constitutional court can invalidate legislation.
—George Liebmann, Baltimore Sun, 2 July 2025
See All Example Sentences for invalidate
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Sindhya Valloppillil, Forbes.com, 15 July 2025
The state Auditor’s Office cannot pass laws, cannot invalidate laws, cannot force the Legislature to accept its recommendations for improvement.
—Jeanne M. Kempthorne, Boston Herald, 15 July 2025
House Bill 495, sponsored by Republican Rep. David Hale, would invalidate Beshear's 2024 order banning the use of state and federal funds on conversion therapy for minors.
—Hannah Pinski, The Courier-Journal, 2 July 2025
In France and Germany, only a single constitutional court can invalidate legislation.
—George Liebmann, Baltimore Sun, 2 July 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 29 Jul. 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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