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