新しん成せい人じんTop 15000MeaningsNoun1. new adult (in Japan, a person who reaches adulthood that year)Kanji used新new成become人personComposed of新しんnew; neo-; newness; novelty; Gregorian calendarPrefix成せい人じんadult; grown-up; becoming an adult; coming of age; growing up (to be a man, woman)Noun