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