Home › Words › U › ungrammaticalnessungrammaticalnessungrammaticalness · noun — the quality of being ungrammatical.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, ungrammaticalness ranks #42,292 of 43,053 for Qualifying.EtymologyFrom ungrammatical + -ness.nounThe quality of being ungrammatical.Definitions & examples from Wiktionary (CC BY-SA 3.0).