Definition of ostentatiousness in US English:

ostentatiousness

noun

  • See ostentatious

    • ‘Her ostentatiousness is endearing, if you can swallow both the musical and vocal flourishes.’
    • ‘Perched high over the ocean, the modest homes spoke of a more reasonable society free from the ostentatiousness of mainstream Hollywood.’
    • ‘Of course some percentage of this represented authentic business and educational expense, but much of it was pure ostentatiousness or ‘gallery’ as we are wont to describe in local parlance.’
    • ‘Del Mar never grew to an unmanageable size or broad-avenued ostentatiousness, because it couldn't.’

Pronunciation

ostentatiousness

/ˌɑst(ə)nˈteɪʃəsnəs//ˌäst(ə)nˈtāSHəsnəs/