truly vs genuinely

truly and genuinely both are adverbs.

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

As adverbs, truly and genuinely are synonyms defined as:

Other synonyms of truly include really.

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