See devious in Webster's New World Roget's A-Z Thesaurus II
adjective
Marked by treachery or deceit:
disingenuous, duplicitous, guileful, indirect, lubricious, shifty, sneaky, underhand, underhanded. See honestNot taking a direct or straight line or course:
anfractuous, circuitous, circular, indirect, oblique, roundabout, tortuous. See straightWithout a fixed or regular course:
erratic, stray, wandering. See purpose
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