Definition of invalidity Invalidity

in•va•lid•i•ty

We found 5 definitions of invalidity from 4 different sources.

What does invalidity mean?

Noun Plural: invalidities
invalidity - illogicality as a consequence of having a conclusion that does not follow from the premisses
		invalidness
		illogic, illogicality, illogicalness, inconsequence invalid or incorrect reasoning

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invalidity (n.)
Want of validity or cogency; want of legal force or efficacy; invalidness; as, the invalidity of an agreement or of a will.
invalidity (n.)
Want of health; infirmity.