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
On the heels of that decision, the Supreme Court tossed out lower court rulings invalidating two separate federal firearms restrictions as applied to their individual challengers, as well as a lower court ruling that upheld provisions of a New York law.
—
Melissa Quinn, CBS News, 2 July 2024
In 2021, a Chinese court invalidated the company’s patent following a challenge from a Chinese pharmaceutical company.
—Prarthana Prakash, Fortune Asia, 26 June 2024
The federal judge overseeing Donald Trump's classified documents case is hearing arguments today on the former president's effort to invalidate the appointment of special counsel Jack Smith.
—Katherine Faulders, ABC News, 21 June 2024
If the court invalidated the tax, the Justice Department warned, the government could lose $340 billion.
—Maureen Groppe, USA TODAY, 20 June 2024
See all Example Sentences for invalidate 
Melissa Quinn, CBS News, 2 July 2024
In 2021, a Chinese court invalidated the company’s patent following a challenge from a Chinese pharmaceutical company.
—Prarthana Prakash, Fortune Asia, 26 June 2024
The federal judge overseeing Donald Trump's classified documents case is hearing arguments today on the former president's effort to invalidate the appointment of special counsel Jack Smith.
—Katherine Faulders, ABC News, 21 June 2024
If the court invalidated the tax, the Justice Department warned, the government could lose $340 billion.
—Maureen Groppe, USA TODAY, 20 June 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 15 Jul. 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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