Dictionary.com
Thesaurus.com
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.

See Examples For:

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

“The fundamental conclusions are the invalidity of the death certificate when it comes to cachexia as a cause of death,” Aurelio Luna, one of the panel’s experts, said at that time.

From Seattle Times Feb. 13, 2023

This gained, the legate would have no need to mention further the validity or invalidity of the dispensation.

From A History of England Principally in the Seventeenth Century, Volume I (of 6) by Ranke, Leopold von

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training