octagonal diagonal hexagonal

Words that almost rhyme with semioctagonal

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