factional fractional interactional transactional

Words that almost rhyme with rarefactional

maximal

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