obdurate ------------ 固执的（形容词）
英文释义
(adjective) Unreasonably stubborn; not willing to change opinions; hardened against either feeling or logic.
例句
Regardless of their hard work or loyalty to the company, the obdurate old owner refused to treat his employees kindly or fairly.
尽管员工们努力工作，对公司忠心耿耿，但是老迈而固执的老板却不愿意好心或者公平地对待他们。
更多信息请查看口语入门