flippantly
adv. 没礼貌地；轻率地
例句
Do not treat them flippantly.
不要轻率对待。
In a Study in Pink, Anderson flippantly calls Holmes a psychopath.
在《粉色的研究》这一集中，安德森无礼地称福尔摩斯为精神变态者。
How can you possibly treat such an important vote so flippantly as to regret it just hours later?
怎么可以这么轻率地对待如此重要的投票？投完几个小时就后悔？
