ADJ-SUPERL
(用于否定句，起强调作用)极小的，些微的，一丁点儿的
You can use faintest for emphasis in negative statements. For example, if you say that someone hasn't the faintest idea what to do, you are emphasizing that they do not know what to do.
例句
I haven't the faintest idea how to care for a snake...
我对养蛇一无所知。
He said yesterday that there was not 'the faintest possibility' that the government would bring in such a measure.
他昨天说政府推行这样的措施连“微乎其微的可能性”都没有。