2 adjectives to describe deceitfulness

This he cannot reasonably have expected to obtain without war; but when the war comes we hear exactly the same tale as now of the Germans' love of peace and the despicable deceitfulness of their enemies.

The U.O.L. It's not that it's any partickler pleasure to me, seeing a balloon, though we did get our tea done early to be in time for itit's the sly deceitfulness of your conduck, MARIA, which is all the satisfaction I get for coming out with you,it's the feeling thatwell, there, I won't talk about it!

2 adjectives to describe  deceitfulness