crooked
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