This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Characterized by or given to ostentation; pretentious. See Synonyms at showy.

adj. Of ostentation.

adj. Intended to attract notice.

adj. Of tawdry display; kitsch.

adj. Fond of, or evincing, ostentation; unduly conspicuous; pretentious; boastful.

Making public display.

Characterized by ostentation; making display or vain show from vanity or pride.

Showy; gaudy; intended for vain display: as, ostentatious ornaments.

Synonyms Dashing, flaunting. See ostentation.

adj. intended to attract notice and impress others

adj. (of a display) tawdry or vulgar

"After all, Swanson had practically invented the word ostentatious."

showy    splashy    flaunty    flamboyant    tasteless   

ostensible    ostensive   

pretentious    boastful    showy   

Ignatius    audacious    capacious    ceraceous    crustaceous    efficacious    fallacious    flirtatious    gracious    hellacious   

showy    regal    extravagant    tawdry    gaudy    lavish    pretentious    utmost    insolent    ceremonious