Synonyms for Ostentation (same or very similar meaning)
WordNet sense 1 (a gaudy outward display):
fanfare, flashWordNet sense 2 (lack of elegance as a consequence of being pompous and puffed up with vanity):
inflation, pomposity, pompousness, pretentiousness, puffiness, splashiness, ostentatiousnessFrom the ODE community, based on WordNetadd/edit