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