en.wiktionary.org盛年 - Wiktionary, the free dictionary From Wiktionary, the free dictionary Kanji in this term 盛 年 せいGrade: 6 ねんGrade: 1 on'yomi (Tokyo) せーねん [sèénéń] (Heiban – [0])[1]IPA(key): [se̞ːnẽ̞ɴ] 盛(せい)年(ねん) • (seinen) prime of age 盛(せい)年(ねん)重(かさ)ねて来(き)らず (seinen kasanete kirazu) ^ Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN