invalidity

== English == === Etymology === From invalid +‎ -ity. === Noun === invalidity (countable and uncountable, plural invalidities) The state of being invalid; lack of validity. ==== Translations ==== === References === William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “invalidity”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC. “invalidity”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.