learned person vs scholar

learned person and scholar both are nouns.

Word	Noun	Adjective	Verb	Adverb
learned person	Yes	No	No	No
scholar	Yes	No	No	No

As nouns, scholar is a hypernym of learned person; that is, scholar is a word with a broader meaning than learned person:

learned person: someone who has been admitted to membership in a scholarly field
scholar: a learned person; someone who by long study has gained mastery in one or more disciplines

Other hypernyms of learned person include bookman, scholarly person.

learned person (noun)	scholar (noun)
someone who has been admitted to membership in a scholarly field	a learned person; someone who by long study has gained mastery in one or more disciplines
	someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs
	a student who holds a scholarship