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