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