Here's what rhymes with cassational.
                        
                        
                    
                                operational  vocational  educational  occupational  relational  conversational  motivational  observational  rotational  sensational  situational  vibrational  conformational  foundational  gestational  associational  correlational  ideational  locational  subnational  variational  avocational  aberrational  organizational  gravitational  recreational  informational  organisational  generational  inspirational  navigational  translational  coeducational  mutational  invitational  nonvocational  probational  computational  congregational  confrontational  nonoperational  denominational  improvisational  nonoccupational  representational  intergenerational  transformational  noneducational  nondenominational  interdenominational  nonrepresentational  Words that almost rhyme with cassational
occasional  available  saleable  salable  assailable  capable  payable  attainable  insatiable  unshakable  unshakeable  unsaleable  bailable  unsalable  conveyable  obtainable  sustainable  unavailable  changeable  debatable  unassailable  breakable  trainable  claimable  gradable  persuadable  resalable  incapable  traceable  unattainable  unchangeable  ascertainable  inflatable  repayable  unbreakable  erasable  mistakable  inescapable  exchangeable  explainable  unobtainable  unsustainable  maintainable  degradable  untraceable  irreclaimable  reclaimable  nonbreakable  unmistakable  interchangeable  irreplaceable  replaceable  embraceable  biodegradable  nonexchangeable  microwavable  noninterchangeable