Dictionary.com
Thesaurus.com
Showing results for invalidity. Search instead for invalidcy.
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

If the government presses ahead to pay compensation on behalf of the companies, the lawyers would fight to prove its invalidity, he said.

From Reuters Feb. 16, 2023

The invalidity of "the principle of causality" is asserted by this author.

From Christianity and Greek Philosophy or, the relation between spontaneous and reflective thought in Greece and the positive teaching of Christ and His Apostles by B. F. (Benjamin Franklin) Cocker

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

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

Start training