imperturbableness


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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.

im′per·turb′a·bil′i·ty, im′per·turb′a·ble·ness n.
im′per·turb′a·bly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.imperturbableness - calm and unruffled self-assurance; "he performed with all the coolness of a veteran"
calmness - a feeling of calm; an absence of agitation or excitement

imperturbableness

noun