不可信,不真實
there is / was nothing in sth
(某事)不可信,不真實
something is / was not true
There was a rumour she was going to resign, but there was nothing in it.有傳言說她要辭職,不過這靠不住。
釋義來自《牛津高階英漢雙解詞典》第 9 版