pomposity       
noun [ U ]  disapproving uk/pɒmˈpɒs.ə.ti/ us/pɑːmˈpɑː.sə.t̬i/ (also pompousness, uk/ˈpɒm.pəs.nəs/ us/ˈpɑːm.pəs.nəs/)
 妄自尊大,自以为是
the quality of being too serious and showing that you think you are very important
  His pomposity and arrogance became clear in the interview. 他的自负和傲慢在采访中表现得淋漓尽致。 
 See: pompous
 - More examples
 - Beneath all his pomposity, he was a kind man.
 - She made a little joke in an effort to puncture his pomposity.
 - Moore is at his best when sending up the pompousness and vanity of politicians.
 - I hate pompousness, barking out orders, and hierarchy.