From Longman Dictionary of Contemporary Englishflippantflip‧pant /ˈflɪpənt/ adjective JOKING/NOT SERIOUSnot being serious about something that other people think you should be serious about a rather flippant remarkflippant about You shouldn’t be flippant about such things. —flippantly adverb —flippancy noun [uncountable] This is no time for flippancy.
Examples from the Corpus
flippant• He did not mind being flippant about New York, but disliked to hear any one else take the same tone.• Kalb gave a flippant answer to the question.• That's not a flippant answer.• Under that flippant attitude he liked to show at Park Crescent was a mind like quicksilver.• If I am flippant, it's perhaps because nearly all these books are awkward about the limitations of psychology.• People ask me if I'm related to him, and my answer is usually a flippant "No, but I wish I were."• This consideration was not a flippant one.• Sorry if that sounded flippant or heartless - it wasn't meant to be.• You're not really ridiculing the anger I experience at your flippant pseudo-feminist attitude.• Despite the slightly flippant tone I have adopted, this essay is based on hard science.Origin flippant (1600-1700) FLIP1 