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