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