manifestive,a.rare.|ˈmænɪfɛstɪv| [f. manifest v. + -ive.] = manifestative. 1846Sir W. Hamilton Reid's Wks. 771 note, On sense, experience, induction, it [this knowledge] is dependent, as on its exciting,..manifestive,..occasional cause.1867Bailey Univ. Hymn 7 Hidden in Himself, self manifestive cause.