contumacy (n.)

"willful and persistent resistance to legitimate authority," c. 1200, from Old French contumace and directly from Latin contumacia "perseverance in one's purpose or opinions," generally in a bad sense, "arrogance, inflexibility, haughtiness, insolence," also especially "obstinate disobedience to a judicial order," abstract noun from stem of contumax (see contumely).