Synonyms:
- boat-shaped,
- boatlike,
- bowl-shaped,
- bowllike,
- cavelike,
- cavernous,
- concave,
- concaved,
- craterlike,
- cup-shaped,
- cymbiform,
- dish-shaped,
- dished,
- dishing,
- dishlike,
- funnel-breasted,
- funnel-chested,
- funnel-shaped,
- hollow,
- hollowed,
- incurved,
- incurving,
- incurvous,
- infundibular,
- infundibuliform,
- navicular,
- naviform,
- retiring,
- retreating,
- saucer-shaped,
- scaphoid,
- scyphate,
- spoonlike,
- sunk,
- sunken