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Showing results for imperturbable. Search instead for unperturbably.
Synonyms

imperturbable

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

adjective

  1. incapable of being upset or agitated; not easily excited; calm.

    imperturbable composure.

    Synonyms:
    unmoved, cool, impassive, collected, composed

imperturbable British  
/ ˌɪmpɜːˈtɜːbəbəl /

adjective

  1. not easily perturbed; calm; unruffled

"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

Other Word Forms

Etymology

Origin of imperturbable

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

Explanation

If you're imperturbable you are not easily upset. If your goal is to be imperturbable, then you can't let things bother you or get you stressed, confused, or angry. The adjective imperturbable is the flip side of perturbable, which comes from perturb, which in turn traces back to the Latin word perturbare, meaning “to confuse” or “to disturb.” If something really annoying is going on, like one neighbor is jack-hammering his driveway and another has a dog that's barking while you're trying to sleep because you were up all night studying and you really really need a nap, but you stay calm and don’t get upset, you are imperturbable.

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Vocabulary lists containing imperturbable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

That was part of Federer’s tennis mystique: the elegant, imperturbable calm, the way he almost never let the pressure boil and send him over the edge.

From The Wall Street Journal Aug. 25, 2026

Paul Newman’s posthumous memoir, “The Extraordinary Life of an Ordinary Man,” sheds light on a seemingly imperturbable Hollywood star.

From New York Times Oct. 17, 2022

“Welcome to the Grand Canyon!” says our guide, Karla Kennedy, a tall, imperturbable veteran of some 12 rim-to-rim hikes this year alone.

From Seattle Times Dec. 4, 2021

They often suggest the imperturbable spontaneity of jazz musicians reacting to one another.

From Los Angeles Times Nov. 16, 2021

He was imperturbable on the witness stand and treated the prosecutors as though they were errant students who needed stern admonishment.

From "Long Walk to Freedom" by Nelson Mandela

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