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   In·val·id

   /inˈvaləd/

   

   adjective

   • 1. (of an official document or procedure) not legally recognized and therefore void because contravening a regulation or law: "the will was declared invalid and the children were entitled to the estate" Similar voidlegally voidnullnull and voidunenforceablenot bindinginoperativeworthlessillegitimateincorrectimproperunacceptableinapplicableannullednullifiedcanceledrevokedrescindedabolishedrepealedOpposite validbinding
   • ▪ (especially of an argument, statement, or theory) not true because based on erroneous information or unsound reasoning: "a comparison is invalid if we are not comparing like with like" Similar falseuntrueinaccuratefaultyfallaciousspuriousinadequateunconvincingunsoundweakwrongwrongly inferredwide of the markoff targetunjustifiedunsubstantiatedunwarranteduntenablebaselessill-foundedunfoundedgroundlessillogicalirrationalunscientificabsurdpreposterousinconsistentinformal:off beamoutway outfull of holesbogusOpposite trueaccurate
   • ▪ (of computer instructions, data, etc.) not conforming to the correct format or specifications.

   Word Origin mid 16th century (earlier than valid): from Latin invalidus, from in- ‘not’ + validus ‘strong’ (see valid).

   Derivatives

   • 1. invalidly adverb

   Scrabble Points: 11

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