Source : Webster's Revised Unabridged Dictionary (1913)

Flippantly \Flip"pant*ly\, adv.
   In a flippant manner.

Source : WordNet®

flippantly
     adv : in a flippant manner; "he answered the reporters' questions
           flippantly"; "this cannot be airily explained to your
           children" [syn: {airily}]