1. 1〔以前〕past days; the old days; bygone days;《文》 the days of yore
    • こんな静かな夜には在りし日のことが心に浮かんでくる
    • On such a quiet night memories of past days come to mind.
  1. 2〔生前〕
    • 鉢植えの盆栽は在りし日の父を思い出させる
    • These potted miniature trees remind me of my late father.
    • 在りし日の兄はよくここを訪れた
    • My brother used to visit this spot during his lifetime.