1. 名詞
   不可數名詞: 頑固
   (指因堅持己見、不聽勸告的)固執, 執拗, 倔強
   (指因堅持己見的)冷酷無情, 心腸冷酷
   執迷不悟, 冥頑不靈
   

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

例句

1. He constructs in his mind a sense of the overarching power and obdurateness of the 'system'.
2. Efforts to alter these patterns in the absence of other institutional changes tend to encounter societal obdurateness .
3. There can be, however, just as much obdurateness and ignorance on the part of property owners and users who fail to understand how their proposals may cause actual difficulty to others.
4. Especially is this the case if the friend is gentle in his speech, and skilled at matching his words to his intentions; if he is aware of the times when the negative should be emphasized, and the occasions on which it is better to concentrate on positive injunctions; and if he is apprised of the hours wherein both approaches ought to be combined; all according to the degree of tractability or obdurateness , response or rebellion which he observes in the lover.