billow
billowy
camber
contortion
curl
curve
curvy
flex
flexure
flow
flowing
frizzy
irregular
kink
kinky
line
linear
monochrome
motion
oscillation
parallel
pattern
ripple
ripply
serpentine
sinuous
sinus
smooth
squiggle
squiggly
streak
strip
stripe
swirl
twirl
undulate
warp
wave
wavy
wiggle
wiggly
worm
wriggle
wriggly
writhe
writhing