ostentation

/ˌɑstɛnˈteɪʃən/
noun
  1. An excessive display of wealth, knowledge, or skill intended to impress others.
    • The billionaire's party was criticized for its vulgar ostentation.
    • His knowledge of wine was genuine, not just for ostentation.
    • She preferred simple elegance over ostentation in her home decor.
Antonyms
What does "ostentation" mean? | whatsthatwordmean | whatsthatwordmean