Home › Words › U › unsystematicnessunsystematicnessunsystematicness means the state of being unsystematic.Among words judged in Lexicurio's Arena, unsystematicness ranks #41,247 of 42,762 for Qualifying.EtymologyFrom unsystematic + -ness.nounThe state of being unsystematic.Definitions & examples from Wiktionary (CC BY-SA 3.0).