Synonyms and related words :
aggressive, antagonistic, arrogant, audacious, belligerent, beyond control, bold, brash, brassy, brazen, breachy, bumptious, challenging, cheeky, cocky, contemptuous, contumacious, daring, defying, derisive, disdainful, disobedient, disregardful, fractious, greatly daring, gutsy, headstrong, hostile, impatient of control, impertinent, impudent, incorrigible, indocile, indomitable, insolent, insubordinate, insuppressible, intractable, irrepressible, mutinous, obstinate, obstreperous, ornery, out of hand, pert, pugnacious, rebellious, recalcitrant, refractory, regardless of consequences, resistant, resisting, restive, saucy, self-willed, shrewish, spunky, stubborn, unbiddable, uncontrollable, ungovernable, unmalleable, unmanageable, unmoldable, unruly, unsubmissive, unyielding, wild