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