Originative

a.

1.

Having power, or tending, to originate, or bring into existence; originating.

Adj.	1.	originative - having the ability or power to create; "a creative imagination" Synonyms: creative
	2.	originative - having the power to bring into being Synonyms: creative
	3.	originative - containing seeds of later development; "seminal ideas of one discipline can influence the growth of another" Synonyms: germinal, seminal

behind the scenes, causal, causative, conceptive, conceptual, constitutive, constructive, creative, decisive, demiurgic, determinative, effectual, esemplastic, etiological, fecund, fertile, formative, generative, germinal, ideational, ideative, imaginative, ingenious, innovational, innovative, inspired, institutive, inventive, notional, occasional, original, pivotal, pregnant, productive, prolific, seminal, shaping, teeming, visioned