not easily perturbed or excited or upset; marked by extreme calm and composure; hitherto imperturbable, he now showed signs of alarm; an imperturbable self-possession; unflappable in a crisis
[ Syn: imperturbable ]
not easily perturbed or excited or upset; marked by extreme calm and composure; hitherto imperturbable, he now showed signs of alarm; an imperturbable self-possession; unflappable in a crisis
[ Syn: imperturbable ]