/sung"keuhn/ , adj.
1. having sunk or been sunk beneath the surface; submerged.
2. having settled to a lower level, as walls.
3. situated or lying on a lower level: a sunken living room.
4. hollow; depressed: sunken cheeks.
v.
5. Obs. a pp. of sink .
[ 1325-75; ME, ptp. of sinken to SINK ]