生没年未詳 せいぼつねんみしょう Meanings Expression dates of birth and death unknown See also: 生没年不詳 (せいぼつねんふしょう). Kanji 生 life. Read as セイ. 没 submerge. Read as ボツ. 年 year. Read as ネン. 未 not yet 詳 detailed. Read as ショウ. Jinuma: Japanese Dictionary · Word lists