tài​rán​zì​ruò

cool and collected

Senses

泰然自若 tài​rán​zì​ruò cool and collected

(idiom) to behave with perfect composure; showing no sign of nerves or agitation even in the face of danger or crisis

References

antonym 惊慌失措/驚慌失措 泰然自若/泰然自若
antonym 惊惶失措/驚惶失措 泰然自若/泰然自若