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