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