deteriorate - v. 악화시키다, (가치 등을) 떨어뜨리다, (도덕 등을) 저하시키다

• convalesce
• recover
• recuperate

• The political situation deteriorated after the collapse of the government.
• It will not deteriorate and maybe cleaned occasionally with soap and warm water.
• Goods which by reason of their nature cannot be returned or are liable to deteriorate rapidly.