imperturbableness

im·per·turb·a·ble

 (ĭm′pər-tûr′bə-bəl)

adj.

Unshakably calm and collected: "His ... facial expression never deviated from the imperturbable mask" (Molly Worthen). See Synonyms at cool.

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im′per·turb′a·bil′i·ty, im′per·turb′a·ble·ness n.

im′per·turb′a·bly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Noun

1.

imperturbableness - calm and unruffled self-assurance; "he performed with all the coolness of a veteran" coolness, imperturbability calmness - a feeling of calm; an absence of agitation or excitement

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

imperturbableness

noun

A stable, calm state of the emotions:

aplomb, balance, collectedness, composure, coolness, equanimity, imperturbability, nonchalance, poise, sang-froid, self-possession, unflappability.

Slang: cool.

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.