beloved vs dearest

beloved and dearest both are nouns.

Word	Noun	Adjective	Verb	Adverb
beloved	Yes	Yes	No	No
dearest	Yes	No	No	No

As nouns, beloved and dearest are synonyms defined as:

Other synonyms of beloved include baby, darling, dear, dearie, deary, honey, love, sweetheart, sweetie.

beloved (noun)	dearest (noun)
a beloved person; used as terms of endearment	a beloved person; used as terms of endearment

beloved (adjective)	dearest (adjective)
dearly loved