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