Examples from the Web for imperturbable
Nor did Eric Ellman, my wise and imperturbable guide to the Mexican-American border river.
Upon my return Helen was looking her imperturbable neat self.I Walked in Arden|Jack Crawford
His imperturbable scent is a confused power of vision in what is twilight to us.The Man Who Laughs|Victor Hugo
That young man, while as imperturbable and languid in movement as ever, concealed an excitement.The Riverman|Stewart Edward White
British Dictionary definitions for imperturbable
Word Origin and History for imperturbable
c.1500, from Middle French imperturbable and directly from Late Latin imperturbabilis "that cannot be disturbed" (Augustine), from assimilated form of in- "not, opposite of" (see in- (1)) + *perturbabilis, from Latin perturbare "to confuse, disturb" (see perturb). Related: Imperturbably; imperturbability.