sneaky Synonyms

underhand underhanded slippery surreptitious furtive sneak stealthy undercover treacherous snide sneaking sly slinking slick skulking tricky underground pussly unethical cloak-and-dagger underarm cunningham dodgy two-faced duplicitous untrustworthy wily unscrupulous unprincipled shrewd shifty dirty devious deceptive deceitful cunning crooked crafty covert conniving clandestine catlike backstairs dishonest disingenuous evasive shady secretive secret scheming