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