truly vs unfeignedly

truly and unfeignedly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
truly	No	No	No	Yes
unfeignedly	No	No	No	Yes

As adverbs, truly and unfeignedly are synonyms defined as:

Other synonyms of truly include sincerely.

truly (adverb)	unfeignedly (adverb)
in accordance with truth or fact or reality	with sincerity; without pretense
by right
with sincerity; without pretense
in fact (used as intensifiers or sentence modifiers)