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