obdurate
🇺🇸
/ˈɑːbdərət/
🇬🇧
/ˈɒbdjərət/
stubbornly refusing to change one's opinion or actions
Despite all the evidence, he remained obdurate in his belief that the project would succeed.
모든 증거에도 불구하고 그는 프로젝트가 성공할 것이라는 믿음을 굳건히 유지했다.