hanging loosely

drooping

a swelling or outward curve

swollen object

(of an outline or surface) curved inwards like the inner surface of a bowl

curved, depressed

sad or gloomy

depressed, blue

sad; depressed; ill; from a high(er) level to a low(er) one

below; physically lower

(of the muscles, flesh) soft; not firm

baggy, fat

hanging down loosely; without strength

limp

old, neglected etc; unwell

run-down, dilapidated