harmful
impalpable
perceptive
Byzantine
Machiavellian
Machiavellic
abstruse
accurate
acute
adulterated
air-built
airy
analytic
analytical
appreciative
arcane
arch
artful
astute
attentive
attenuate
attenuated
balled up
boyish
cagey
calculating
canny
casuistic
chimerical
civilized
clever
close
cloud-built
complex
complicated
concealed
confounded
confused
conscientious
constant
convoluted
correct
crabbed
crafty
creamy
critical
cultivated
cultured
cunning
cut
subtile
subtlety
subtly
delicate
natural
profound
rebuttal
ruttle
scuttle
shuttle
suttle
unsubtle