sanctimoniousness       
noun [ U ]  formal disapproving uk/ˌsæŋk.tɪˈməʊ.ni.əs.nəs/ us/ˌsæŋk.təˈmoʊ.ni.əs.nəs/
 道貌岸然
a quality of acting as if you are morally better than others
  I found his sanctimoniousness quite irritating. 我觉得他道貌岸然的样子很让人恼火。 
 a sense of smug sanctimoniousness 自鸣得意道貌岸然的感觉 
 See: sanctimonious
 - More examples
 - If there is one thing that kills comedy, it's sanctimoniousness.
 - He asked his questions with delighted sanctimoniousness.
 - The magazine's main failure is sanctimoniousness.