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