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