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