flippancy
131pertness — n. 1. Briskness, smartness, sprightliness, liveliness. 2. Sauciness, forwardness, impertinence, impudence, flippancy …
132flippant — adjective not being serious about something that other people think you should be serious about, so that they think you do not care: A hospital is hardly the place for such flippant remarks. flippantly adverb flippancy noun (U) …