concealed
corrupt
crooked
Machiavellian
Machiavellic
acute
arch
artful
astute
back-door
backstairs
cagey
calculating
canny
chiseling
clandestine
clever
collusive
covert
covinous
cowering
crafty
cringing
cunning
cute
deceitful
deep
deep-laid
designing
devious
diplomatic
dishonest
disingenuous
duplicitous
false
falsehearted
feline
finagling
foxy
fraudulent
furtive
guileful
hidlings
hole-and-corner
hugger-mugger
indirect
ingenious
insidious
inventive
knowing
pawky
politic
privy
sneak
amoral
coy
creepy
deceptive
despicable
greedy
impish
manipulative
nosy
secretive
sheepish
shifty
sly
spiteful
surreptitious
tricky
underhanded
unethical
Leakey
cheeky
creaky
dashiki
freaky
geeky
leaky
squeaky