Home › Words › U › unperceptivenessunperceptivenessunperceptiveness means quality of being unperceptive.Among words judged in Lexicurio's Arena, unperceptiveness ranks #36,608 of 42,749 for Qualifying.EtymologyFrom unperceptive + -ness.nounQuality of being unperceptive.Definitions & examples from Wiktionary (CC BY-SA 3.0).