Home › Words › U › uncoolnessuncoolnessuncoolness means the state or condition of being uncool (unfashionable).Among words judged in Lexicurio's Arena, uncoolness ranks #36,524 of 42,747 for Qualifying.EtymologyFrom uncool + -ness.nounThe state or condition of being uncool (unfashionable).Definitions & examples from Wiktionary (CC BY-SA 3.0).