intractable Synonyms

unmanageable stubborn headstrong perverse ungovernable unruly obstinate refractory recalcitrant rebellious uncompromising pertinacious inexpugnable inextensible inflexible obstreperous insubordinate insuperable insuppressible obdurate mutinous mulish intransigent insurmountable resolute pigheaded noncompliant unteachable uncooperative unyielding unaccommodating willful wilful wild wayward violent uncontrollable unbending stiff-necked self-willed rigid undisciplined adamant crossgrained deaf defiant determined difficult disobedient disobliging