devious

Synonyms: artful calculating crooked deceitful double-dealing duplicitous errant erring evasive faking one out fishy foxy fraudulent guileful indirect insidious insincere not straightforward oblique obliquitous playing games playing politics put on roundabout scheming shady shifty shrewd sly sneaking sneaky surreptitious treacherous tricky underhanded wily

Antonyms: artless frank honest open straightforward trustworthy truthful

Synonyms: ambiguous bending circuitous confounding confusing curving detouring deviating digressing digressory diverting errant erratic excursive flexuous misleading obscure out-of-theway rambling remote removed roundabout serpentine straying tortuous twisting wandering

Antonyms: direct straight