twisty (adj.)

• ambagious
• anfractuous
• circuitous
• circumlocutory
• crooked
• curvy
• flexuous
• involute
• labyrinthine
• mazy
• meandering
• roundabout
• ruffled
• serpentine
• sinuate
• sinuous
• snaky
• tortuous
• turning
• twisting
• whorled
• winding
• zigzag