INVALIDITY

invalidity|invalidness. Invalidity, or Invalidness, n. weakness

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In′va‐lid″i‐ty (?), n. [[Cf. F. invalidité, LL. invaliditas want of health.]] 1. 1. Want of validity or cogency; want of legal force or efficacy; invalidness; as, the invalidity of an agreement or of a will.
2. 2. Want of health; infirmity. Sir W. Temple.