I was scared silly.

我都吓傻了。

youdao

At the time, people are scared silly, patients are black body, the body was bacterial infection of skin, black skin appears to mildew, which is very terrible.

当时吓得人都傻了，病人全身都发黑了，全身的皮肤都被细菌感染，黑色的皮肤似乎还发霉了，很可怕。

youdao

Kurt: Silly, only grown up men are scared of women.

库：傻瓜，只有大男人才怕女人。

youdao

The horror-loving audience who wants to be scared silly, on the other hand, ought to know that, TV ads featuring night-vision footage of freaked out preview patrons to the contrary, this is a movie of quiet spookiness rather than loud BOO!

CNN: Review: 'The Woman in Black'

Luigi Zingales said either the banks were worse off than we thought or, and I know this sounds silly, the banks are scared.

NPR: Why Haven't Credit Problems Been Resolved?