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
Synonyms
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
Prosecutors allege that Trump participated in a plot to submit fake election certificates to Congress, aiming to invalidate Biden’s win.
—
Nik Popli, TIME, 25 Apr. 2024
Wright and Mundt are asking the court to invalidate the remaining signatures collected by the high school student.
—Maritza Dominguez, The Arizona Republic, 24 Apr. 2024
See all Example Sentences for invalidate 
Nik Popli, TIME, 25 Apr. 2024
Wright and Mundt are asking the court to invalidate the remaining signatures collected by the high school student.
—Maritza Dominguez, The Arizona Republic, 24 Apr. 2024
See all Example Sentences for invalidate
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'invalidate.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near invalidate
Cite this Entry
“Invalidate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invalidate. Accessed 3 May. 2024.
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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