weakened vs attenuated

weakened and attenuated both are adjectives.

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

As adjectives, weakened and attenuated are synonyms defined as:

Other synonyms of weakened include attenuate, faded.

weakened (adjective)	attenuated (adjective)
damaged; used of inanimate objects or their value	reduced in strength
reduced in strength	of an electrical signal; reduced in amplitude with little or no distortion
mixed with water
impaired by diminution
made weak or weaker