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