Here's what rhymes with dipyramidal.
pyramidal extrapyramidal Words that almost rhyme with dipyramidal
blamable cannibal flammable inflammable nonflammable national radical rational casual diagonal verapamil international practical irrational maximal clavicle factional interactional octagonal cantonal madrigal grammatical fractional hexagonal impractical lnternational transnational supranational transactional unpractical multinational ungrammatical semiannual