frivolous  adj. 轻佻的, 琐碎的, 妄动的


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钱。It was frivolous of him to make such an accusation.他提出这样的指控真无聊。