1. 名詞
   不可數名詞: 頑固, 頑強
   固執, 固執己見
   不知變通, 死腦筋
   (指固執、不知變通)死心眼
   任性
   

   同義字詞
   doggedness,hardheadedness,intransigence,mulishness,obduracy,obdurateness,obstinacy,obstinateness,opinionatedness,pertinaciousness,pertinacity,pigheadedness,self-will,stubbornness,willfulness
   

例句

1. I feel that that type of bullheadedness shows ignorance.
2. But that was discounting Mr. Flaherty's bullheadedness .
3. Barney is a very stubborn man, whose bullheadedness is the reason for his unhappiness throughout the novel.
4. While we love calculating cars like the Nissan GT-R, there's something to be said about the bullheadedness of a true American pony car like the Super Snake.
5. General Gates, in American military lore not a respected figure by his record as assayed by historians, seems to have combined stupidity and bullheadedness , with a touch of cowardice emerging when failure came from his leadership.