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