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