Here's what rhymes with devastative.
dative native dissipative imitative iterative creative legislative authoritative innovative associative oxidative vegetative educative meditative radiative dissociative evaporative nonnative annotative administrative cooperative collaborative appreciative integrative connotative denotative cogitative emulative qualitative evaluative investigative deliberative regulative procreative copulative stimulative quantitative interpretative manipulative rehabilitative unappreciative accumulative nonadministrative Words that almost rhyme with devastative
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