Artful, 4 letters
Artfully clever, 4 letters
Astute, 4 letters
Clever, 4 letters
Crafty, 4 letters
Crazy like a fox, 4 letters
Cunning, 4 letters
Designing, 4 letters
Full of guile, 4 letters
Full of tricks, 4 letters
Guileful, 4 letters
Hard to outwit, 4 letters
Like a coyote, 4 letters
Like a fox, 4 letters
Like a slyboots, 4 letters
Pretty tricky, 4 letters
Scheming, 4 letters
Shrewd, 4 letters
Skilled at deception, 4 letters
Skillfully deceptive, 4 letters
Slick, 4 letters
Sly, 4 letters
Sly as a fox, 4 letters
Tricky, 4 letters