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