衰すい運うんすいうんMeanings1noundeclining fortunes; waning luckRefers to a period of decreasing luck or prosperity, often used in a somewhat literary or formal context.彼かれは衰すい運うんの時じ代だいを乗のり越こえて、再ふたたび成せい功こうを収おさめた。He overcame a period of declining fortunes and achieved success again.