ultracentenarian/ˌʌl.tɹəˌsɛn.təˈnɛəɹi.ən/EtymologyFrom ultra- + centenarian.ultracentenarian means A person who is over a hundred years old. Lexicurio rates it Rare gem — a strength score of 83 out of 100.ultracentenarian is pronounced /ˌʌl.tɹəˌsɛn.təˈnɛəɹi.ən/.nounA person who is over a hundred years old