If you describe someone as pig-headed, you are critical of them because they refuse to change their mind about things, and you think they are unreasonable.
例句
She, in her pig-headed way, insists that she is right and that everyone else is wrong.她固执地坚持认为自己是对的，别人都是错的。
英英词典释义
Noun
1. resolute adherence to your own ideas or desires