silly

1. ADJ If you say that someone or something is silly, you mean that they are foolish, childish, or ridiculous. 愚蠢的; 幼稚的; 荒唐的

My best friend tells me that I am silly to be upset about this. 我最好的朋友說我為此事心煩太傻了。

I thought it would be silly to be too rude at that stage. 我覺得處在那個階段上太過粗魯是很幼稚的。