obstinate

(verb) persist stubbornly. Example: "He obstinates himself against all rational arguments."

(adj) tenaciously unwilling or marked by tenacious unwillingness to yield. Synonyms: stubborn (vs. docile), unregenerate.

(adj) stubbornly persistent in wrongdoing. Synonyms: cussed, obdurate, unrepentant.

(adj) resistant to guidance or discipline. Synonyms: contrary, perverse, wayward. Examples: "Mary mary quite contrary." "An obstinate child with a violent temper." "A perverse mood." "Wayward behavior."