English

Definition of flippant adjective from the Oxford Advanced Learner's Dictionary

 

flippant

 adjective
adjective
BrE BrE//ˈflɪpənt//
 
; NAmE NAmE//ˈflɪpənt//
 
(informal flip)
 
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showing that you do not take something as seriously as other people think you should a flippant answer/attitude Sorry, I didn't mean to sound flippant. You can’t afford to be flippant about such matters. Word Origin early 17th cent.: from flip + -ant, perhaps on the pattern of heraldic terms such as couchant and rampant. Early senses included ‘nimble’ and ‘talkative’, hence ‘playful’, giving rise to the current use ‘lacking seriousness’.
See the Oxford Advanced American Dictionary entry: flippant