evolution vs unfolding

evolution and unfolding both are nouns.

Word	Noun	Adjective	Verb	Adverb
evolution	Yes	No	No	No
unfolding	Yes	No	No	No

As nouns, unfolding is a hyponym of evolution; that is, unfolding is a word with a more specific, narrower meaning than evolution:

evolution: a process in which something passes by degrees to a different stage (especially a more advanced or mature stage)
unfolding: a developmental process

Other hyponyms of evolution include assibilation, deepening, growth, flowering, tsundere.

evolution (noun)	unfolding (noun)
(biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms	a developmental process
a process in which something passes by degrees to a different stage (especially a more advanced or mature stage)