n. [ Pref. in- not + solidity: cf. F. insolidité. ] Lack of solidity; weakness; as, the insolidity of an argument. [ R. ] Dr. H. More. [ 1913 Webster ]
n. [ Cf. F. invalidité, 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 ]