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