Cynthian, S-shaped, ambagious, anfractuous, bicorn, circuitous, circumlocutory, convolutional, corniform, crescent-shaped, crescent, crescentic, crescentiform, crescentlike, falcate, falciform, flexuose, flexuous, horn-shaped, horned, involute, involuted, involutional, labyrinthine, lunar, lunate, luniform, lunular, mazy, meandering, meandrous, menisciform, meniscoid, moon-shaped, moonlike, rivose, rivulose, roundabout, ruffled, semicircular, semilunar, serpentine, sickle-like, sickle-shaped, sinuate, sinuose, sinuous, snaky, torsional, tortile, tortuous, turning, twisting, twisty, two-horned, whorled, winding, wreathlike, wreathy