crafty
adjective uk/ˈkrɑːf.ti/ us/ˈkræf.ti/
(CLEVER)
狡猾的;狡诈的，诡计多端的
clever, especially in a dishonest or secret way
I have some crafty ideas for getting around the regulations. 我想出了个妙计可以钻这些规定的空子。
She was a crafty old woman. 她是个诡计多端的老太太。