invalidity

noun

in·​val·​id·​i·​ty ˌin-və-ˈli-də-tē How to pronounce invalidity (audio)
-va-
plural invalidities
1
: lack of validity or cogency
2
: incapacitating bodily disability
also : invalidism

Examples of invalidity in a Sentence

the invalidity of the contract an injured worker forced to live on invalidity benefit
Recent Examples on the Web But patent invalidity suits—which test whether the patent claimed by the plaintiff is indeed valid and are the preferred defense for companies being sued for infringement—go through a special German patent court, which can take up to three times longer to render decisions. Bertrand Benoit, WSJ, 14 Mar. 2021 Gallagher’s greeting card company Full Colour Black started an invalidity action in March 2019 to cancel the EU trademark on the iconic mural, arguing that Banksy must copyright his work instead of registering trademarks to incorporate them. Sophie Mellor, Fortune, 21 Nov. 2022 The Supreme Court said its declaration of invalidity is retroactive to the date the 2011 law was enacted, meaning those who have been sentenced under the statute can now seek relief. Amanda Coletta, Washington Post, 27 May 2022 Label choice bias is far more common than subgroup invalidity. Carol McCall, STAT, 12 Aug. 2021 Echelon’s invalidity arguments are similar to those raised by Flywheel over related patents. BostonGlobe.com, 8 July 2020 There’s no question that Trump turned McCabe’s firing into a political cudgel, gleefully tweeting about his ouster and claiming it as more proof of the invalidity of the Russia investigation. Jen Kirby, Vox, 3 Apr. 2018 The loss before the nation’s top patent court came a week after J&J’s Janssen Biotech unit got hit with an invalidity ruling on another blockbuster, the cancer drug Zytiga. Susan Decker, Bloomberg.com, 23 Jan. 2018 The invalidity or unenforceability of any provision of these rules shall not affect the validity or enforceability of any other provision. Emily Jan, The Atlantic, 17 Oct. 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'invalidity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1550, in the meaning defined at sense 1

Time Traveler
The first known use of invalidity was circa 1550

Dictionary Entries Near invalidity

Cite this Entry

“Invalidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invalidity. Accessed 20 Apr. 2024.

Medical Definition

invalidity

noun
in·​val·​id·​i·​ty ˌin-və-ˈlid-ət-ē, -va- How to pronounce invalidity (audio)
plural invalidities
1
: incapacity to work because of prolonged illness or disability
2

Legal Definition

invalidity

noun
in·​va·​lid·​i·​ty ˌin-və-ˈli-də-tē How to pronounce invalidity (audio)
: lack of validity : state of being invalid
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