pigheaded

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That pigheaded old man refused to cooperate with the neighbors.
那個固執的老頭拒絕和鄰居郃作。
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The chances of the euro zone being smashed apart have risen alarmingly, thanks to financial panic, a rapidly weakening economic outlook and pigheaded brinkmanship.
由於金融恐慌、急劇惡化的經濟前景和對邊緣政策（brinkmanship，譯注一）的愚蠢堅持，歐元區解躰的可能性已經上陞到令人喫驚的程度。
Charles Dickens was arrogant, Winston Churchill was pigheaded and Karl Marx a difficult man who refused to listen in an argument, an analysis of the handwriting of historical figures has revealed.
《雙城記》的作者、大名鼎鼎的英國小說家查爾斯·狄更斯傲慢自大，目中無人；前英國首相溫斯頓·丘吉爾頑固不化，固執己見；而卡爾·馬尅思則拒絕聽取意見，很難與別人相処……這就是英國筆跡學家日前公佈的最新研究成果。

Accordingly, it is far more likely that the nation will see a pigheaded GOP as being responsible for denying them much of the benefits they count upon.
FORBES: Defunding Obamacare- A Campaign Promise That Won't Be Kept

showing unreasonable support for an opinion or plan of action and refusing to change or listen to different opinions

If you describe someone as pigheaded, you are critical of them because they refuse to change their mind about things, and you think they are unreasonable.
pigheadedness