He answered carelessly and flippantly.
他回答的时候漫不经心，没当回事。
柯林斯例句
He answered the reporters'questions flippantly; this cannot be airily explained to your children.
他轻率地回答了记者的问题; 这个不能随便说给孩子听.
《简明英汉词典》
How can you treat me so flippantly!
你怎么能对我这样轻薄!
辞典例句
Still, these risks are real, and we will not flippantly disregard them.
当然, 这些风险是真实的, 我们不能轻视他们.
互联网
He answered the reporters'questions flippantly.
他轻率地回答了记者的问题.
互联网
"he answered the reporters' questions flippantly"
"this cannot be airily explained to your children"