Recalcitrant
Recalcitrant (re*kal"si*trant) , adjective
[Latin recalcitrans, present participle of recalcitrare to kick back; pref. re- re- + calcitrare to kick, from calx heel. Compare Inculcate.]
Kicking back; recalcitrating; hence, showing repugnance or opposition; refractory.