Here's what rhymes with quinquenium.
encomium cerium labium samarium museum mausoleum imperium cilium coliseum francium solarium trapezium protactinium Words that almost rhyme with quinquenium
dn zijn paean peon lndian chorion ruffian boolean plebeian occafion protean epicurean rerum diesem teatime freedom hominum chiefdom threesome fiefdom sheikdom sheikhdom capsicum arboretum