anfractuous (adj.)

• ambagious
• circuitous
• circumlocutory
• cochlear
• convoluted
• flexuous
• helical
• involute
• labyrinthine
• mazy
• meandering
• roundabout
• ruffled
• serpentine
• sinuate
• sinuous
• snaky
• spiral
• tortuous
• turbinate
• turning
• twisting
• twisty
• verticillate
• volute
• voluted
• whorled
• winding