Definition of imperturbable

competent Definition: (adjective) having the skill and knowledge needed for a particular task; capable Petersons.com

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< impertinent

impervious >

im·per·turb·a·ble    (mpr-tûrb-bl) KEY  

ADJECTIVE:

Unshakably calm and collected. See Synonyms at cool.

OTHER FORMS:
imper·turba·bili·ty or imper·turba·ble·ness (Noun), imper·turba·bly (Adverb)

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