artful
on the sly
Byzantine
Machiavellian
Machiavellic
acute
adroit
arch
astute
back-door
backstairs
cagey
calculating
canny
cautious
clandestine
clever
covert
crafty
creep
crooked
cunning
cute
deceitful
deep
deep-laid
designing
devious
dexterous
diplomatic
dishonest
disingenuous
downy
feline
foxy
furtive
guileful
gumshoe
hidden
hidlings
hole-and-corner
hugger-mugger
ingenious
insidious
inventive
knowing
lurk
slier
sliest
slyer
slyest
malicious
nasty
playful
sarcastic
sardonic
shrewd
sinister
spiteful
tease
treacherous
wicked
Ai
Alai
Ally
Bi
Bligh
Bly
Brunei
Cai
Cy
Dai
Di
Dubai
Eye
Fae
Fi
Fry
Frye
Gae
Guy
I
I.
July
Kai
Lai
Lanai
Lie
Mai
Mumbai
Pty
Shanghai
Sri
Sy
Tai
Thai
Ty
Versailles
Vi
Y
Zhuhai
ai
ally
apply
awry
ay
aye
belie
bi
bonsai
buy
by