pompousness

1. Simple but grandiose architecture; it often suggests pretentiousness, affectation, or pompousness
   简洁但巨大的建筑；其常暗指自以为是，虚假或自傲
2. I'm sick of his pompousness and pretentiousness.
   我很厌恶他的自负与装腔作势。

noun

1. lack of elegance as a consequence of being pompous and puffed up with vanity

   Synonym:    ostentationostentatiousnesspompositypretentiousnesspuffinesssplashinessinflation