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