Here's what rhymes with semihexagonal.
hexagonal diagonal octagonal Words that almost rhyme with semihexagonal
national rational factional fallible sagittal satiable savable capital radical valuable casual irrational fractional clavicle palatal cannibal flammable laughable passable cantonal chasuble fanciable tangible palpable taxable infallible mandible pyramidal madrigal blamable bankable cantabile graspable frangible international practical compatible grammatical invaluable adaptable impassable inflammable interactional tractable detachable collapsible expandable semiannual impassible unflappable declarable multinational transnational intangible lnternational supranational transactional impalpable merchantable nonflammable attractable incompatible implacable impractical intractable ungrammatical unpractical nontaxable retractable nondetachable understandable extrapyramidal