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