Imperturbable in a sentence as an adjective

Even the most imperturbable of us are only capable of maintaining a civil tone to a certain point on more controversial topics.

"By suspending judgment, by confining oneself to phenomena or objects as they appear, and by asserting nothing definite as to how they really are, one can escape the perplexities of life and attain an imperturbable peace of mind.

Imperturbable definitions

adjective

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"

See also: unflappable