Synonyms: recessed
Definition: resembling an alcove
Similar words: concave
Definition: curving inward
Synonyms: sunken, recessed, deep-set
Definition: having a sunken area
Usage: hunger gave their faces a sunken look
Similar words: hollow
Definition: not solid; having a space or gap or cavity
Usage: a hollow wall; a hollow tree; hollow cheeks; his face became gaunter and more hollow with each year