Here's what rhymes with diversitarian.
sectarian carrion sanitarian ovarian clarion cnidarian agrarian librarian barbarian egalitarian totalitarian libertarian vegetarian nonsectarian vulgarian authoritarian disciplinarian trinitarian veterinarian centenarian seminarian humanitarian utilitarian proletarian antiquarian octogenarian nonagenarian sexagenarian septuagenarian communitarian parliamentarian latitudinarian valetudinarian Words that almost rhyme with diversitarian
barium sanitarium chameleon vivarium aquarium honorarium nobelium planetarium ferryman ferrymen lesbian thespian pedestrian equestrian vestrymen vestryman