Open English Wordnet
Nouns
(n)ostentation, ostentatiousness, pomposity, pompousness, pretentiousness, puffiness, splashiness, inflationlack of elegance as a consequence of being pompous and puffed up with vanity
(n)pretentiousness, pretension, largenessthe quality of being pretentious (behaving or speaking in such a manner as to create a false appearance of great importance or worth)