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