Home › Words › U › unskilfulnessunskilfulnessunskilfulness · noun — lack of skill.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, unskilfulness ranks #17,012 of 43,086 for Qualifying.EtymologyFrom unskilful + -ness.nounLack of skill.Definitions & examples from Wiktionary (CC BY-SA 3.0).