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