lettered vs well-educated

lettered and well-educated both are adjectives.

Word	Noun	Adjective	Verb	Adverb
lettered	No	Yes	No	No
well-educated	No	Yes	No	No

As adjectives, lettered and well-educated are synonyms defined as:

lettered and well-educated: highly educated; having extensive information or understanding

Other synonyms of lettered include knowing, knowledgeable, learned, well-read.

lettered (adjective)	well-educated (adjective)
highly educated; having extensive information or understanding	highly educated; having extensive information or understanding