Invalidity

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Invalidity \In`va*lid"i*ty\, n. [Cf. F. invalidit['e], LL.
     invaliditas lack of health.]
     [1913 Webster]
     1. Lack of validity or cogency; lack of legal force or
        efficacy; invalidness; as, the invalidity of an agreement
        or of a will.


        [1913 Webster]
  
     2. Lack of health; infirmity. [Obs.] --Sir W. Temple.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  invalidity
       n : illogicality as a consequence of having a conclusion that
           does not follow from the premisses [syn: {invalidness}]