flippant

adj. 无礼的，轻率的

flight lieutenant, flight path, flight sergeant, flight simulator, flight-deck, flight-recorder, flightless, flighty, flimsily, flimsiness, flimsy, flinch, fling, flint, flintlock, flinty, flip, flip side, flip-flop, flippancy, flippantly, flipper, flipping, flirt, flirtation, flirtatious, flit, float, floating, flock, floe, flog, flogging, flood, flood-tide, floodgate, flooding, floodlight, floor, floor show,