[ im-per-tur-buh-buhl ]

  1. 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 for imperturbable

Other words from imperturbable

  • im·per·turb·a·bil·i·ty, im·per·turb·a·ble·ness, noun
  • im·per·turb·a·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use imperturbable in a sentence

  • He was greeted by hoots and jeers, but with absolute imperturbability he reorganised his forces and checked the enemy.

    Napoleon's Marshals | R. P. Dunn-Pattison
  • He has that natural repose and imperturbability that are everything to an artist, but which, unfortunately, so few of us possess.

  • Then she recalled with pride Margaret's imperturbability under such a trial.

    The Butterfly House | Mary E. Wilkins Freeman
  • Mr. Simeon Browns usual demeanour was that of the most leathery imperturbability.

    The Minister's Wooing | Harriet Beecher Stowe
  • Punch admired the imperturbability of Mr. Asquith, who is shown combining in his own person the rles of prisoner, judge and jury.

British Dictionary definitions for imperturbable


/ (ˌɪmpɜːˈtɜːbəbəl) /

  1. not easily perturbed; calm; unruffled

Derived forms of imperturbable

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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012