史し上じょう唯ゆい一いつしじょうゆいいつじ字FuriganaMeanings1nounthe first in history; only once in historyUsed to emphasize that something is unprecedented or has never happened before. Often appears in news, formal writing, or dramatic statements.彼かれは史し上じょう唯ゆい一いつの五ご冠かん達たっ成せい者しゃだ。