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unperturbed

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adjective un·per·turbed \ˌən-pər-ˈtərbd\

Definition of unperturbed

  1. :  not worried, upset, or disquieted :  not perturbed continued unperturbed by the interruption

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First Known Use of unperturbed

15th century

unperturbed Synonyms

Synonyms
collected, composed, cool, coolheaded, equal, level, limpid, peaceful, placid, possessed, recollected, sedate, self-composed, self-possessed, serene, smooth, together, tranquil, undisturbed, calm, unruffled, unshaken, untroubled, unworried
Antonyms
agitated, discomposed, disturbed, flustered, perturbed, unglued, unhinged, unstrung, upset
Related Words
even, even-keeled, steady, well-adjusted, well-balanced; imperturbable, nerveless, unflappable, unshakable; centered, disciplined, equable, self-contained, self-controlled; affable, breezy, devil-may-care, easygoing, happy-go-lucky, laid-back, loosey-goosey, mellow; carefree, nonchalant, unconcerned; assured, confident, self-assured; aloof, detached, dispassionate, indifferent; bovine, impassive, phlegmatic, sober, stolid; relaxed, relieved, tranquilized (also tranquillized)
Near Antonyms
anxious, bothered, distressed, uneasy, unquiet, unsettled, worried; jittery, jumpy, nervous, restless, skittish, tense; high-strung, unstable, uptight

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