Home › Words › I › incognizanceincognizanceincognizance means failure to cognize, apprehend, or notice.Among words judged in Lexicurio's Arena, incognizance ranks #1,058 of 42,752 for Qualifying.EtymologyFrom in- + cognizance.nounFailure to cognize, apprehend, or notice.e.g.“Now, this incognizance may be explained on three possible hypotheses.” — a. 1857, William Hamilton, edited by H[enry] L[ongueville] Mansel and John Veitch, Lectures on Metaphysics and Logic […], volume (please specify |volume=I to IV), Edinburgh; London: William Blackwood Definitions & examples from Wiktionary (CC BY-SA 3.0).