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