| cuī | mourning garments |
| shuāi | weak/feeble/decline/wane |
| 衰 | mourning garments |
| 衰之以属 | to treat a debility according to its nature |
| 衰亡 | to decline to die out decline and fall |
| 衰减 | to weaken to attenuate |
| 衰减时间 | damping time; decay time; storage time |
| 衰变 | radioactive decay |
| 衰变常数 | decay constant; disintegration constant |
| 衰变曲线 | decay curves |
| 衰变热 | decay heat |
| 衰变率 | decay rate; decay ratio; the rate of decay; disintegration rate |
| 衰变链 | decay chain |
| 衰弱 | weak feeble |
| 衰弱的 | broken-down; feeble; weak; enervate; flagging; emaciated; marasmic; hyposthenic; marantic; wrecky; hypodynamic; raddled; tabid; asthenic; adynamic; sickly; rocky; enervated; faint; effete; doddered |
| 衰微 | to decline to wane weakened |
| 衰敝 | decline; wane; be at a low ebb |
| 衰朽 | decaying decrepit aged and crumbling |
| 衰竭 | organ failure exhaustion prostration (medicine) |
| 衰老 | to age to deteriorate with age old and weak |
| 衰草 | withering grass |
| 衰落 | to fall to drop to decline |