1) Curved 2) Curved or curving in and out 3) Curving 4) Sinuous 5) Wavy 6) Wiggly 1) Curved 2) Curving 3) Sinuous 4) Snaky 5) Wiggly 
with deep, wave-like depressions along the margins, but more or less flat; compare undulate.
with deep wave-like indentations in a horizontal plane along the margin. cf. repand
having wavy margins
having a wavy edge or margin; winding; sinuous
• (v. i.) To bend or curve in and out; to wind; to turn; to be sinusous.
strongly or deeply wavy, usually referring to a leaf margin
With deep, wave-like depressions along the margin. ... Compare: undulate. ... (09 Oct 1997) ... 
strongly or deeply wavy, usually referring to a leaf margin
Wavy-margined.
Sin'u·ate adjective [ Latin sinuatus , past participle of sinuare to wind, bend, from sinus a bend.] Having the margin alternately curved inward and outward; having rounded lobes separated by rounded sinuses; sinuous; wavy. Sin'u·ate intransitive verb [ imperfect & past participle Sinuated ; present participle & verbal noun Sinuating .] To bend or curve in and out; to wind; to turn; to be sinuous. Woodward. 
having wavy margins
[adj] - curved or curving in and out 2. [adj] - having a strongly waved margin alternately concave and convex
sinuous adjective curved or curving in and out; `wiggly lines`