Laodicean, Olympian, airy, aloof, apathetic, at ease, ataractic, balanced, benumbed, blah, blase, calm, carefree, careless, casual, cheerful, cold, collected, comatose, composed, cool, deadpan, degage, desensitized, detached, devil-may-care, disimpassioned, disinterested, dispassionate, disregardful, distant, dull, easy, easygoing, effortless, even-tempered, free and easy, frigid, glad, happy-go-lucky, happy, heartless, hebetudinous, heedless, hopeless, idle, impassive, imperturbable, in a stupor, inattentive, incurious, indifferent, indolent, inexcitable, insensible, insensitive, insouciant, lackadaisical, laid-back, languid, lax, lethargic, light, lighthearted, listless, loose, lukewarm, mellow, mild-tempered, mindless, neglectful, negligent, neutral, numb, numbed, offhand, passive, perfunctory, phlegmatic, placid, pluckless, pococurante, poised, reckless, regardless, relaxed, resigned, sans souci, sedate, self-controlled, self-possessed, serene, slack, sluggish, smooth, soporific, spiritless, spunkless, steady, stoic, stupefied, supine, together, torpid, tranquil, trifling, turned-off, unaffected, unanxious, uncaring, unconcerned, undiscriminating, undisturbed, unemotional, unenthusiastic, unexcitable, unexcited, unfeeling, unflappable, unheeding, unimpressible, uninquisitive, uninterested, uninvolved, unmindful, unmoved, unperturbed, unruffled, unsolicitous, unstirred, untroubled, withdrawn, without a care in the world, world-weary