Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

involution, circumvolution; wave, undulation, tortuosity, anfractuosity†; sinuosity, sinuation†; meandering, circuit, circumbendibus†, twist, twirl, windings and turnings, ambages†; torsion; inosculation†; reticulation &c (crossing) 219; rivulation†; roughness &c 256. coil, roll, curl; buckle, spiral, helix, corkscrew, worm, volute, rundle; tendril; scollop†, scallop, escalop†; kink; ammonite, snakestone†. serpent, eel, maze, labyrinth. knot. V. be convoluted &c adj.; wind, twine, turn and twist, twirl; wave, undulate, meander; inosculate†; entwine, intwine†; twist, coil, roll; wrinkle, curl, crisp, twill; frizzle; crimp, crape, indent, scollop†, scallop, wring, intort†; contort; wreathe &c (cross) 219. Adj. convoluted; winding, twisted &c v.; tortile†, tortive†; wavy; undated, undulatory; circling, snaky, snake-like, serpentine; serpent, anguill†, vermiform; vermicular; mazy, tortuous, sinuous, flexuous, anfractuous†, reclivate†, rivulose†, scolecoid†; sigmoid, sigmoidal [Geom.]; spiriferous†, spiroid†; involved, intricate, complicated, perplexed; labyrinth, labyrinthic†, labyrinthian†, labyrinthine; peristaltic; daedalian†; kinky, knotted. wreathy†, frizzly, crepe, buckled; raveled &c (in disorder) 59. spiral, coiled, helical; cochleate, cochleous; screw-shaped; turbinated, turbiniform†. Adv. in and out, round and round; a can of worms; Gordian knot.