fishy

that makes you suspicious because it seems dishonest

可疑的，靠不住的;在某一件事情上你感到不太对头，似乎有人在进行欺骗

There's something fishy going on here.

这儿有点不大对头。

Your story sounds fishy.

你的故事听起来不可信。

There is something fishy about that fellow.

那个家伙形迹有点儿可疑。