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