THESAURUS
sunken
boat-shaped, boatlike, bowl-shaped, bowllike, buried, cavelike, cavernous, concave, concaved, craterlike, cup-shaped, cupped, cymbiform, debased, depressed, dish-shaped, dished, dishing, dishlike, downcast, downthrown, drawn, drowned, engulfed, fallen, flooded, funnel-breasted, funnel-chested, funnel-shaped, haggard, hollow, hollowed, immersed, incurved, incurving, incurvous, infundibular, infundibuliform, inundated, low, lowered, navicular, naviform, prostrate, reduced, retiring, retreating, saucer-shaped, scaphoid, scyphate, settled, spoonlike, subaqueous, submarine, submerged, submersed, sunk, underground, undersea, underwater