invalid
1in·val·id
adj \(ˌ)in-ˈva-ləd\Definition of INVALID
: not valid: a : being without foundation or force in fact, truth, or law <an invalid assumption> <declared the will invalid> b : logically inconsequent
— in·val·id·ly \-lē\ adverb
Origin of INVALID
Latin invalidus weak, from in- + validus strong — more at valid
First Known Use: 1542
Rhymes with INVALID
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All Words Near: invalid
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