O-shaped, aberrant, aberrative, accessory, accidental, additional, adscititious, adventitious, ambagious, amoral, ancillary, artful, backhand, backhanded, calculating, chiseling, circuitous, circular, circumambient, circumlocutional, circumlocutory, collateral, collusive, coming, conscienceless, contingent, corrupt, corrupted, covinous, crafty, criminal, crooked, cunning, dark, deceitful, deflectional, departing, desultory, deviant, deviating, deviative, deviatory, devious, digressive, discursive, dishonest, dishonorable, divagational, divergent, doubtful, dubious, duplicitous, errant, erratic, evasive, eventual, excursive, false, falsehearted, felonious, finagling, final, fishy, fraudulent, furtive, guileful, helical, ill-got, ill-gotten, immoral, incidental, insidious, labyrinthine, last, left-handed, mazy, meandering, not kosher, oblique, orbital, out-of-the-way, periphrastic, planetary, questionable, rambling, rotary, rotten, round, roundabout, roving, scheming, secondary, serpentine, shady, shameless, sharp, shifting, shifty, side, sidelong, sinister, sinistral, sinuous, slippery, snaky, sneaking, sneaky, spiral, stray, subordinate, subsidiary, surreptitious, suspicious, swerving, tortuous, treacherous, trickish, tricky, turning, twisted, twisting, two-faced, ultimate, unconscienced, unconscientious, unconscionable, underhand, underhanded, undirected, unethical, unprincipled, unsavory, unscrupulous, unstraightforward, vagrant, veering, wandering, wily, winding, without remorse, without shame, zigzag