obstinacy       
noun [ U ]  usually disapproving uk/ˈɒb.stɪ.nə.si/ us/ˈɑːb.stə.nə.si/
 固执,顽固
the quality of being unreasonably determined, especially to act in a particular way and not to change at all, despite what anyone else says
  I stayed until the end out of sheer obstinacy. 出于纯粹的固执,我一直待到最后。 
 the obstinacy of the human spirit 人类精神的固执 
 See: obstinate
 - More examples
 - She has showed obstinacy in the face of difficulty.
 - He made his case with obstinacy.
 - They were merely reacting out of pride and obstinacy.