正襟危坐
zhèngjīn-wēizuò
to sit up straight and solemn
Every meaning
zhèngjīn-wēizuò
- to sit up straight and solemn
Its characters
- 正zhèngstraight; upright
- 襟jīnfront of a garment; lapel (as in 衣襟)
- 危wēidanger; dangerous (as in 危险)
- 坐zuòto sit
Words with 正
Words with 襟
Meanings from our own dictionary. Chengyu from the Xinhua idiom list, the most common first.