1. A shape that curves or bends inward
   - concavity, incurvation, incurvature

Derived forms: concave shapes

Type of: solid

• saffron
• saffron crocus
• safranin
• safranine
• sag
• sag down
• saga
• sagacious
• sagaciously
• sagaciousness
• sagacity
• sagamore
• sage
• sage grouse
• sage hen
• sage willow
• sage-green
• sagebrush
• sagebrush buttercup
• sagebrush lizard
• sagebrush mariposa tulip
• Sagebrush State
• sagely
• saggar
• sagger