famed vs illustrious

famed and illustrious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
famed	No	Yes	No	No
illustrious	No	Yes	No	No

As adjectives, famed and illustrious are synonyms defined as:

Other synonyms of famed include celebrated, famous, far-famed, notable, noted, renowned.

famed (adjective)	illustrious (adjective)
widely known and esteemed	having or conferring glory
	widely known and esteemed