Home › Words › U › understandingnessunderstandingnessunderstandingness means the state or condition of being understanding.Among words judged in Lexicurio's Arena, understandingness ranks #36,606 of 42,747 for Qualifying.EtymologyFrom understanding + -ness.nounThe state or condition of being understanding.Definitions & examples from Wiktionary (CC BY-SA 3.0).