sneaky /ˈsniːkɪ/ ( sneakier, sneakiest )

• 1. 

  ADJ If you describe someone as sneaky, you disapprove of them because they do things secretly rather than openly. 鬼祟的; 偷偷摸摸的 [非正式]

  例：

  It is a sneaky and underhand way of doing business.

  这是一种偷偷摸摸、见不得人的生意经。