initiative vs enterprise

initiative and enterprise both are nouns.

Word	Noun	Adjective	Verb	Adverb
initiative	Yes	Yes	No	No
enterprise	Yes	No	No	No

As nouns, initiative and enterprise are synonyms defined as:

Other synonyms of initiative include enterprisingness, go-ahead.

initiative (noun)	enterprise (noun)
the first of a series of actions	a purposeful or industrious undertaking (especially one that requires effort or boldness)
readiness to embark on bold new ventures	readiness to embark on bold new ventures
	an organization created for business ventures

initiative (adjective)	enterprise (adjective)
serving to set in motion