ambagious, circuitous, circumlocutory, cochlear, cochleate, convoluted, convolutional, corkscrew, corkscrewy, flexuose, flexuous, helical, helicoid, involute, involuted, involutional, labyrinthine, mazy, meandering, meandrous, rivose, rivulose, roundabout, ruffled, screw-shaped, scrolled, serpentine, sinuate, sinuose, sinuous, snaky, spiral, spiroid, torsional, tortile, tortuous, turbinal, turbinate, turning, twisting, twisty, verticillate, volute, voluted, whorled, winding, wreathlike, wreathy