frivolous 轻佻的琐碎的frivolous adj.
轻佻的, 琐碎的, 妄动的 (来源：英语学习门户网站2hzz.
com)


1.
轻薄的,轻佻的 He made some frivolous remarks.
他说了些轻佻话。
2.
无聊的,琐碎的[+to-v] He spent a lot of his money on frivolous things.
他在一些无聊的事上花了好多遥。
It was frivolous of him to make such an accusation.
他提出这样的指控真无聊。