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