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