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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, ˌɪmpɜːtɜːˈbeɪʃən /

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

Derived 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.

Like Andriessen, Crumb, too, had an imperturbable sway on young composers.

From Los Angeles Times • Apr. 23, 2022

He recovered like somebody with an imperturbable mind.

From Washington Post • Apr. 9, 2022

When they do, Mr. Ebeke said, he merely looks at them, says, “God is just” in his imperturbable voice and moves on down the deck.

From New York Times • Feb. 1, 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

Out of loudspeakers all around Zollverein, the staccato voice of the Reich grows like some imperturbable tree; its subjects lean toward its branches as if toward the lips of God.

From "All the Light We Cannot See" by Anthony Doerr

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