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Synonyms

invalidity

1 American  
[in-vuh-lid-i-tee] / ˌɪn vəˈlɪd ɪ ti /

noun

  1. lack of validity.


invalidity 2 American  
[in-vuh-lid-i-tee] / ˌɪn vəˈlɪd ɪ ti /

noun

  1. invalidism.


Etymology

Origin of invalidity1

From the Medieval Latin word invaliditās, dating back to 1540–50. See invalid 2, -ity

Origin of invalidity2

First recorded in 1905–10; invalid 1 + -ity

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The court has suspended its declaration of invalidity for three years, giving parliament time to amend the current laws to align with its judgement.

From BBC • Oct. 3, 2025

Young voters typically vote in primaries in vanishingly small numbers, comparable only to the size of the post-80 crowd, whose statistics are decimated by invalidity and death.

From Salon • Jun. 30, 2025

“It’s not just that they haven’t made a compelling case for constitutional invalidity in this application, they’ve made absolutely no case for it,” Begbie said.

From Washington Times • Jun. 25, 2023

"A finding of invalidity would terminate the market investigation and leave unaddressed the CMA's concerns about the lack of competition for mobile browsers and cloud gaming," Eadie added.

From Reuters • Mar. 10, 2023

Such weight, however was put on this cavil, that Buckingham, Shaftesbury, Salisbury, and Wharton, insisted strenuously in the house of peers on the invalidity of the parliament, and the nullity of all its future acts.

From The History of England in Three Volumes, Vol.I., Part F. From Charles II. to James II. by Hume, David