obstinate

[ob-stuh-nit] (adjective)

Stubbornly refusing to change one's opinion, course of action, or behavior; firmly adhering to one's purpose or belief despite persuasion or arguments.

SYNONYMS

stubborn inflexible unyielding obdurate headstrong inflexible

ANTONYMS

flexible yielding compliant
Despite the evidence against him, he remained obstinate in his denial of any wrongdoing.