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The state or act of being pretentious - affecting an air of superiority or culture where none truly exists.
"The latest discovery of Jane Austen's unprinted masterpiece, 'Pointlessness and Pretentiosity', brings together the dramatic cycle with a fitting juxtaposition of anagnorisis and perepetaea, providing the quintessential climax and denouement if you will, to a genre that is already fucking full of shit to be honest."

Siskel and Ebert, "Two-Birdies-Up Film Reviews"
by HMB March 27, 2003