Home › Words › U › unadaptivenessunadaptivenessunadaptiveness means the state or condition of being unadaptive.Among words judged in Lexicurio's Arena, unadaptiveness ranks #42,733 of 42,791 for Qualifying.EtymologyFrom unadaptive + -ness.nounThe state or condition of being unadaptive.Definitions & examples from Wiktionary (CC BY-SA 3.0).