behaviour that shows a lack of thought, understanding or judgement synonym foolishness愚蠢的;不明事理的;没头脑的;傻的 Stop this silliness and get back to work! 别犯傻了,回去工作吧!
the fact of being stupid or embarrassing, especially in a way that is more typical of a child than an adult synonym ridiculousness(尤指像小孩一样)可笑的,荒唐的,冒傻气的 Children love the sheer silliness of his poems. 孩子们喜欢他的诗纯粹的愚蠢。