Here's what rhymes with permittable.
ignitible transmittable hospitable Words that almost rhyme with permittable
biddable digital antipodal bridgeable occipital permissible miscible political visible minimal miracle mythical syllable admissible pitiful derivable livable tillable billable unlivable winnable kissable mixable additional visual invisible unthinkable divisible pinnacle polygonal positional pontifical thinkable binnacle printable steerable unprintable unsinkable fixable finagle sinkable original clinical traditional criminal typical biblical conditional fictional predictable provisional transitional invincible medicinal satirical despicable divisional inadmissible oppositional definitional transmissible quizzical diacritical drinkable spiracle cognitional pinochle undrinkable resistible utilisable refillable shrinkable relivable irresistible nutritional aboriginal equivocal juridical frictional volitional biophysical depositional geophysical unoriginal forgivable nonfictional thimbleful nonrefillable individual reciprocal unconditional unpredictable unequivocal compositional explicable prepositional propositional dispositional subclinical unforgivable nonclinical extricable inexplicable jurisdictional transcriptional nontraditional psychophysical astrophysical nonreciprocal inquisitional