Home › Words › S › sexagenarianismsexagenarianismsexagenarianism means the condition of being between 60 and 69 years old.Among words judged in Lexicurio's Arena, sexagenarianism ranks #26,217 of 42,749 for Qualifying.EtymologyFrom sexagenarian + -ism.nounThe condition of being between 60 and 69 years old.Definitions & examples from Wiktionary (CC BY-SA 3.0).