sophistical (adj.)
- acute
- arch
- artful
- astute
- cagey
- canny
- casuistic
- clever
- crafty
- cunning
- cute
- deceitful
- deceptive
- deep
- deep-laid
- designing
- diplomatic
- dishonest
- disingenuous
- empty
- fallacious
- feline
- foxy
- guileful
- hollow
- illusive
- ingenious
- insidious
- insincere
- inventive
- jesuitic
- knowing
- mealymouthed
- overrefined
- pawky
- plausible
- politic
- ready
- resourceful
- scheming
- serpentine
- sharp
- shifty
- shrewd
- slick
- slippery
- sly
- smooth
- snaky
- sneaky
- sophistic
- specious
- stealthy
- strategic
- subtle
- supple
- tactical
- tricksy
- tricky
- vulpine
- wary
- wily
