Here's what rhymes with declarativum.
Words that almost rhyme with declarativum
diesem uneven diesen reason season lesion treason adhesion heathen reafon artesian threesome deletion accretion elision completion secretion cohesion depletion repletion preseason postseason excretion amphotericin teatime rerum cerium chiefdom labium freedom fiefdom francium sheikdom sheikhdom hominum capsicum cilium arboretum samarium coliseum museum mausoleum imperium encomium trapezium solarium protactinium