形容词 “bullheaded” 用来描述某人 “固执任性，刚愎自用，往往不考虑他人的感受”。

例句
He is so bullheaded. He just does what he wants all the time and doesn’t care what I want.
他太固执了。他总是做自己想做的事情，从不在乎我想要什么。

She has this bullheaded way of thinking. She can be really resistant to new ideas.
她的思维方式很固执。她有时很难接受新想法。

I don’t think I’m bullheaded – it’s true I am determined, but I always think about the impact of my actions.
我不认为我是个固执的人。虽然我意志坚定，但我总是会考虑自身行为所带来的影响。