cupped

biconcave dented dimpled dipped excavated hollow hollowed incurvate incurvated incurved indented round rounded sagging scooped sinking sunken

convex distended

arched cleft curved depressed dimpled excavated indented notched pitted striated sunken vaulted void

alveolate carved out cavernous concave cup-shaped deep-set incurved infundibular not solid troughlike unfilled vacant

convex earnest frank full genuine high honest light meaningful raised real sincere soft solid substantial truthful