Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state of being invalid; lack of validity.

from the GNU version of the Collaborative International Dictionary of English

  • n. Lack of validity or cogency; lack of legal force or efficacy; invalidness.
  • n. Lack of health; infirmity.

from The Century Dictionary and Cyclopedia

  • n. Weakness; infirmity.
  • n. Lack of validity; want of cogency, force, or efficacy; specifically, lack of legal force: as, the invalidity of an argument or of a will.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. illogicality as a consequence of having a conclusion that does not follow from the premisses

Etymologies

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Examples

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