invalidity

[ in-vuh-lid-i-tee ]

/ ˌɪn vəˈlɪd ɪ ti /

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noun

lack of validity.

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Origin of invalidity

From the Medieval Latin word invaliditās, dating back to 1540–50. See invalid², -ity

invalidity²

[ in-vuh-lid-i-tee ]

/ ˌɪn vəˈlɪd ɪ ti /

noun

First recorded in 1905–10; invalid¹ + -ity

In Germany their system covers sickness, accidents, invalidity and old age, three different classes.
Proceedings, Third National Conference Workmen's Compensation for Industrial Accidents|Various
If the occupant has performed acts which are not legitimate acts of warfare, postliminium makes their invalidity apparent.
International Law. A Treatise. Volume II (of 2)|Lassa Francis Oppenheim
In like manner the invalidity of the summons bars any charge of contempt of court and condemnation for contumacy.
The Criminal Prosecution and Capital Punishment of Animals|Edmund P. Evans
This gained, the legate would have no need to mention further the validity or invalidity of the dispensation.
A History of England Principally in the Seventeenth Century, Volume I (of 6)|Leopold von Ranke

Was not her legitimacy dependent on the invalidity of her father's marriage with his brother's widow?
A History of England Principally in the Seventeenth Century, Volume I (of 6)|Leopold von Ranke