Synonyms and related words :
Bohemian, affable, afoot and lighthearted, airy, at large, at liberty, beat, blase, boon, breakaway, breezy, buoyant, carefree, careless, casual, clear, convivial, cordial, corky, cursory, debonair, degage, detached, devil-may-care, disengaged, disregardant, disregardful, easy, easygoing, emancipated, familiar, far out, festive, flippant, folksy, footloose, footloose and fancy-free, forgetful, free, free as air, freeborn, freed, fringy, gay, go-as-you-please, gracious, hail-fellow-well-met, haymish, hearty, heedless, heretical, heterodox, hippie, homely, homey, in the clear, inconsiderate, indifferent, informal, insouciant, irregular, jaunty, jolly, jovial, kinky, lackadaisical, lazy, liberated, light, lighthearted, lightsome, loose, maverick, natural, nonchalant, not cricket, not done, not kosher, oblivious, offbeat, offhand, offhanded, on the loose, original, perfunctory, perky, plain, reckless, regardless, relaxed, released, resilient, respectless, scot-free, simple, sociable, tactless, thoughtless, unaffected, unassuming, unattached, unceremonious, uncommitted, unconcerned, unconstrained, unconventional, undiplomatic, unengaged, unfashionable, unheedful, unheeding, uninvolved, unmindful, unofficial, unorthodox, unprepared, unready, unsolicitous, unstudied, untactful, unthinking, way out