Home › Words › U › unadoptionunadoptionunadoption means the process of unadopting.Among words judged in Lexicurio's Arena, unadoption ranks #16,730 of 42,747 for Qualifying.EtymologyFrom un- + adoption.nounThe process of unadopting.Definitions & examples from Wiktionary (CC BY-SA 3.0).