Here's what rhymes with propenfion.
                        
                        
                    
                                Words that almost rhyme with propenfion
lawrencium  lesbian  carrion  thespian  agrarian  librarian  ovarian  barbarian  pedestrian  proletarian  libertarian  chameleon  clarion  ferryman  ferrymen  authoritarian  utilitarian  egalitarian  sectarian  vegetarian  trinitarian  veterinarian  vestrymen  vestryman  vulgarian  totalitarian  equestrian  sanitarian  seminarian  cnidarian  humanitarian  antiquarian  communitarian  octogenarian  parliamentarian  centenarian  nonagenarian  disciplinarian  latitudinarian  nonsectarian  septuagenarian  valetudinarian  sexagenarian