Synonyms and related words :
adventuresome, adventurous, arrogant, bold, brash, brassy, brave, brazen, bumptious, careless, challenging, cheeky, cocky, cold, confident, contemptuous, contumelious, cool, courageous, daredevil, daring, dauntless, death-defying, defiant, defying, derisive, devil-may-care, disdainful, disregardful, disrespectful, doughty, easy, emancipated, enterprising, familiar, fearless, fire-eating, foolhardy, forward, free, greatly daring, harebrained, heedless, hubristic, impertinent, impudent, independent, insolent, insulting, intrepid, madbrain, madbrained, madcap, mettlesome, obtrusive, overbold, overpresumptuous, overweening, pert, presuming, presumptuous, procacious, pushy, rash, reckless, regardless of consequences, relaxed, rude, saucy, self-absorbed, self-centered, selfish, shameless, temerarious, thoughtless, unabashed, unafraid, uncurbed, undaunted, ungoverned, unhampered, uninhibited, unrestrained, untrammeled, uppish, uppity, valiant, valorous, venturesome, venturous, wild, wild-ass