Here's what rhymes with justiciarium.
barium vivarium aquarium honorarium sanitarium planetarium Words that almost rhyme with justiciarium
carrion ovarian clarion agrarian barbarian sectarian trinitarian vulgarian cnidarian nobelium authoritarian librarian antiquarian libertarian vegetarian chameleon veterinarian sanitarian seminarian utilitarian egalitarian proletarian disciplinarian octogenarian centenarian totalitarian nonsectarian nonagenarian sexagenarian humanitarian communitarian parliamentarian latitudinarian septuagenarian valetudinarian fermium gentium requiem technetium biennium millennium proscenium lutetium endometrium lawrencium compendium quadrennium