Does flippant Have a Positive or Negative Connotation?

Flippant is believed to come from flip, which, in turn, is a supposed imitation of the sound of something flipping. The earliest senses of the adjective are "nimble" and "limber." One can be flippant not only on one's feet but in speech—that is to say, their words flow easily. Such flippancy was considered a good thing at first; however, people who speak freely can sometimes seem too talkative, and even impertinent. The positive sense of flippant has slipped from use, but the "disrespectful" sense still flows.