外がい衣いがいいJLPTN5Meanings1nounouter garment; outerwearRefers to clothing worn over other clothes, such as coats, jackets, or robes. Somewhat formal or literary; in everyday speech, 上着 (うわぎ) or コート are more common.寒さむいので、外がい衣いを羽は織おった。Because it was cold, I put on an outer garment.