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