lubricious
nonstick
slick
sliding
slimed
slimy
slipping
slithering
slithery
untrustworthy
untrusty
Machiavellian
Machiavellic
acute
adipose
ambidextrous
amoral
arch
artful
astute
blubbery
buttery
butyraceous
cagey
calculating
canny
changeable
chiseling
chrismal
chrismatory
clever
collusive
conscienceless
corrupt
corrupted
covinous
crafty
criminal
critical
crooked
cunning
cute
dangerous
dark
deceitful
deep
deep-laid
delicate
designing
desultory
devious
diplomatic
dishonest
dishonorable
disloyal
double
double-dealing
doubtful
dubious
elusive
dirty
moist
muddy
shiny
steep
sticky
treacherous
uneven
wet