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