impaired vs weakened

impaired and weakened both are adjectives.

Word	Noun	Adjective	Verb	Adverb
impaired	No	Yes	No	No
weakened	No	Yes	No	No

impaired (adjective)	weakened (adjective)
diminished in strength, quality, or utility	damaged; used of inanimate objects or their value
mentally or physically unfit	reduced in strength
	mixed with water
	impaired by diminution
	made weak or weaker