in·val·id·i·ty /ˌɪnvəˈlɪdəti, væ-/
無效,無價值,病弱
in·val·id·i·ty /ˌɪnvəˈlɪdətɪ, væ-/ 名詞
傷殘
In·va·lid·i·ty n.
1. Lack of validity or cogency; lack of legal force or efficacy; invalidness; as, the invalidity of an agreement or of a will.
2. Lack of health; infirmity. [Obs.]
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invalidity
n : illogicality as a consequence of having a conclusion that
does not follow from the premisses [syn: invalidness]