obstinate
adj. 执拗的，固执的；棘手的，难以去除的
比较级 more obstinate
最高级 most obstinate
例句
He is obstinate and determined and will not give up.
他固执、坚决，不会放弃。
《柯林斯英汉双解大词典》
Don't be stupid and obstinate, like a goat.
不要像山羊一样又笨又固执。
This obstinate refusal made Heidi very angry.
这顽固的拒绝让海蒂很生气。
