| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | empty, hollowed out |
| Synonyms: | alveolate, arched, carved out, cavernous, cleft, concave, cup-shaped, cupped, curved, deep-set, depressed, dimpled, excavated, incurved, indented, infundibular, not solid, notched, pitted, striated, sunken, troughlike, unfilled, vacant, vaulted, void |
| Antonyms: | convex, full, raised, solid |