ಅರ್ಥ : Not easily perturbed or excited or upset. Marked by extreme calm and composure.
ಉದಾಹರಣೆ :
Hitherto imperturbable, he now showed signs of alarm.
An imperturbable self-possession.
Unflappable in a crisis.
ಸಮಾನಾರ್ಥಕ : imperturbable