Definition from Wiktionary, the free dictionary
See also: 沉鱼落雁
submerge; immerse; sink; deep; profound; to lower; to drop
fish to fall; to drop (behind); leave behind wild goose trad. (沉魚落雁) 沉 魚 落 雁 simp. (沉鱼落雁) 沉 鱼 落 雁 alt. forms 沈魚落雁／沈鱼落雁
From Zhuangzi ("Discussion on Making All Things Equal"):
- Mao Qiang and Li Ji [two beautiful courtesans] are what people consider beautiful, but if fish see them they will swim into the depths; if birds see them, they will fly away into the air; if deer see them, they will gallop away. Among these four, who knows what is rightly beautiful in the world?