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