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