incurved (adj.)
- bent
- billowing
- billowy
- boat-shaped
- bowl-shaped
- cavernous
- concave
- curvaceous
- curvate
- curved
- curvilineal
- curvilinear
- curving
- curvy
- dish-shaped
- dished
- funnel-shaped
- hollow
- incurvate
- labyrinthine
- mazy
- meandering
- navicular
- recurvate
- recurved
- retiring
- saucer-shaped
- scaphoid
- serpentine
- sinuous
- sunk
- sunken
- tortuous
- undulant
- wavy
