insidious
- adjective (adj)
Meaning: sneaky, tricky
Synonyms:
artful
astute
corrupt
crafty
crooked
cunning
dangerous
deceitful
deceptive
deep
designing
dishonest
disingenuous
duplicitous
ensnaring
false
foxy
guileful
intriguing
like a snake in the grass
machiavellian
perfidious
perilous
secret
slick
sly
smooth
snaky
sneaking
stealthy
subtle
surreptitious
treacherous
wily
wormlike
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.