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