subsequently vs afterwards

subsequently and afterwards both are adverbs.

Word	Noun	Adjective	Verb	Adverb
subsequently	No	No	No	Yes
afterwards	No	No	No	Yes

As adverbs, subsequently and afterwards are synonyms defined as:

subsequently and afterwards: happening at a time subsequent to a reference time

Other synonyms of subsequently include after, afterward, later, later on.

subsequently (adverb)	afterwards (adverb)
happening at a time subsequent to a reference time	happening at a time subsequent to a reference time