DEVIOUS

adj. 1 deceitful, underhand(ed), insincere, deceptive, misleading, subreptitious, sneaky, furtive, surreptitious, secretive, double-dealing, treacherous, dishonest, shifty, smooth, slick, slippery, scheming, plotting, designing, foxy, vulpine, wily, sly, crafty, tricky Colloq crooked The plot to poison the queen was the product of a devious mind 2 indirect, roundabout, zigzag, evasive, circuitous, crooked, rambling, serpentine, tortuous, sinuous, anfractuous: That is about the most devious bit of reasoning I have ever heard!