衰 JLPT N1 Kanji 衰 — decline, wane, weaken JLPT N1 10 strokes Secondary (Jōyō) Radical 衣 #1432 most frequent Readings On'yomiスイ Kun'yomiおとろ.える Example words 老衰ろうすいsenility; senile decay; infirmity (through age) 衰えるおとろえるto become weak; to decline; to wear; to abate; to decay; to wither; to waste away