Here's what rhymes with decurional.
                        
                        
                    
                                tonal  zonal  coronal  clonal  atonal  polyclonal  antiphonal  monoclonal  Words that almost rhyme with decurional
calomel  chamomile  social  local  total  noble  focal  mobile  vocal  modal  nodal  foetal  motile  sociale  woeful  mogul  yodel  bowlful  global  coastal  hopeful  postal  immobile  doleful  asocial  ennoble  soulful  reposeful  proposal  mucosal  ignoble  boastful  mongrel  prosocial  reproachful  scrotal  unsocial  asphodel  disposal  multimodal  ambrosial  nonsocial  antisocial  psychosocial  anecdotal  patrimonial  sacerdotal  synagogal