sunken
Concise Oxford English Dictionary © 2008 Oxford University Press:
sunken /ˈsʌŋkən/ archaic past participle of sink1
▶adjective
- 1 having sunk.
- 2 at a lower level than the surrounding area.
■ (of a person's eyes or cheeks) deeply recessed.
'sunken' also found in these Oxford entries:

