Home › Words › U › undemonstrabilityundemonstrabilityundemonstrability means the state or condition of being undemonstrable; indemonstrability.Among words judged in Lexicurio's Arena, undemonstrability ranks #36,524 of 42,747 for Qualifying.EtymologyFrom undemonstrabl(e) + -ity.nounThe state or condition of being undemonstrable; indemonstrability.Definitions & examples from Wiktionary (CC BY-SA 3.0).