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