imperturbable

[ im-per-tur-buh-buhl ]
/ ˌɪm pərˈtɜr bə bəl /

adjective

incapable of being upset or agitated; not easily excited; calm: imperturbable composure.

Origin of imperturbable

1490–1500; < Late Latin imperturbābilis. See im-2, perturbable

OTHER WORDS FROM imperturbable

im·per·turb·a·bil·i·ty, im·per·turb·a·ble·ness, noun im·per·turb·a·bly, adverb

Example sentences from the Web for imperturbability

British Dictionary definitions for imperturbability

imperturbable
/ (ˌɪmpɜːˈtɜːbəbəl) /

adjective

not easily perturbed; calm; unruffled

Derived forms of imperturbable

imperturbability or imperturbableness, noun imperturbably, adverb imperturbation (ˌɪmpɜːtɜːˈbeɪʃən), noun