sunken (adj.)

• boat-shaped
• bowl-shaped
• buried
• cavernous
• concave
• debased
• depressed
• dish-shaped
• dished
• downcast
• drawn
• fallen
• flooded
• funnel-shaped
• haggard
• hollow
• incurved
• inundated
• low
• lowered
• navicular
• prostrate
• reduced
• retiring
• saucer-shaped
• scaphoid
• settled
• subaqueous
• submarine
• submerged
• submersed
• sunk
• underground
• undersea
• underwater