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