Here's what rhymes with manifestative.
dative native associative iterative vegetative evaporative creative authoritative imitative oxidative educative meditative radiative dissipative denotative nonnative annotative cooperative legislative innovative appreciative evaluative investigative deliberative dissociative connotative unappreciative cogitative emulative quantitative qualitative collaborative integrative regulative procreative copulative stimulative administrative interpretative manipulative nonadministrative rehabilitative accumulative Words that almost rhyme with manifestative
cages sages rages phages wadis wadges engages mutatis bellyaches disengages reengages macrophages greengages evasive plaintive invasive pervasive abrasive dissuasive persuasive noninvasive unpersuasive nonabrasive