Synonyms of sunken

1 Syllable
low
2 Syllables
deep-set, buried, chasmal, squatty, low-set, hollow, cupped, dimpled
3 Syllables
cup-shaped, incurved, troughlike, chambered, underground, socketed, rock-bottom, indented, concave, cavernous, hollowest, subaqueous, immersed, hypogean, hollower, bottommost, ground-level, low-hanging, low-lying, hypogeal, hollowing, hypogeous, caved-in, fallen-in, recessed
4 Syllables
biconcave, subterranean, incurvated, underwater, incurvate, subaquatic
5 Syllables
infundibular, unelevated