imperturbable Definition

unflappable, composed, sedate, unshaken, unruffled, impassive, stolid, taciturn, stoic, undemonstrative, unexcitable, phlegmatic, amiable, affable, diffident, stoical, easygoing, equanimous, deadpan, nonchalant, equable, serene, emotionless, jovial, unemotional, inexpressive, placid, implacable, unhurried, insouciant, unsmiling, sullen, sphinxlike, unassertive, garrulous, genial, saturnine, steely, unflustered, avuncular, leonine, laconic, cocksure, gruff, imperious, owlish, pugnacious, affectless, unexpressive, unshowy, incommunicative, jocular, voluble, inscrutable, irascible, gregarious, donnish, oracular, scatty, impish, mulish, pixieish, stentorian, lugubrious, brusk, monkish, choleric, grandfatherly, straightlaced, dandified, urbane, unassuming, bristly, schoolmasterly, coltish, seraphic, hangdog, machinelike, haughty, ebullient, unerring, metronomic, orotund, irrepressible, lumpish, somnambulistic, humorless, indefatigable, snappish, goatish, schoolmarmish, uninflected, hawklike, guileless, excitable, debonair, puppyish, professorial, loquacious, epicene,