Here's what rhymes with superimposition.
                        
                        
                    
                                position  fission  addition  opposition  edition  mission  permission  physician  petition  imposition  apposition  audition  tradition  commission  composition  transition  admission  ambition  suspicion  abolition  deposition  emission  partition  musician  omission  supposition  tuition  attrition  fruition  magician  sedition  volition  intermission  patrician  condition  definition  competition  transmission  acquisition  disposition  proposition  repetition  ammunition  coalition  cognition  decomposition  exposition  inhibition  intuition  nutrition  politician  prohibition  submission  superstition  ignition  remission  admonition  apparition  demolition  erudition  preposition  technician  transposition  contrition  dentition  inquisition  interposition  superposition  logician  expedition  exhibition  clinician  requisition  indisposition  presupposition  rendition  disquisition  manumission  premonition  rhetorician  statistician  theoretician  recognition  juxtaposition  mathematician  predisposition  extradition  precondition  redefinition  obstetrician  pediatrician  malnutrition  electrician  Words that almost rhyme with superimposition
vision  given  decision  division  listen  provision  arisen  risen  riven  stiffen  driven  prison  television  precision  rhythm  supervision  collision  incision  revision  excision  forgiven  derision  schism  envision  indecision  striven  prism  subdivision  dualism  fanaticism  modernism  eroticism  imprison  nihilism  aphorism  holism  nepotism  stoicism  mechanism  antagonism  heroism  journalism  mysticism  optimism  symbolism  terrorism  activism  circumcision  dynamism  embolism  empiricism  naturalism  pessimism  catechism  egoism  egotism  fatalism  pacifism  paganism  paroxysm  anarchism  animism  exorcism  fetishism  hedonism  mannerism  monasticism  ostracism  pauperism  criticism  algorithm  metabolism  organism  communism  socialism  despotism  feminism  liberalism  pluralism  altruism  barbarism  cynicism  federalism  feudalism  magnetism  positivism  rheumatism  romanticism  scepticism  unionism  anachronism  cannibalism  dogmatism  evangelism  logarithm  militarism  narcissism  paternalism  separatism  agnosticism  aneurism  cataclysm  centralism  chauvinism  commercialism  elitism  euphemism  heathenism  hypnotism  legalism  lyricism  mercantilism  parasitism  plagiarism  populism  provincialism  recidivism  shamanism  capitalism  imperialism  nationalism  patriotism  alcoholism  colonialism  conservatism  materialism  skepticism  determinism  formalism  humanism  parallelism  pragmatism  radicalism  rationalism  relativism  absolutism  classicism  collectivism  consumerism  fundamentalism  postmodernism  regionalism  astigmatism  behaviorism  corporatism  eclecticism  factionalism  favoritism  scholasticism  sentimentalism  voluntarism  professionalism  bilingualism  hyperthyroidism  hypothyroidism  industrialism  protectionism  secularism  antisemitism  emotionalism  functionalism  isolationism  revisionism  traditionalism  individualism  internationalism  existentialism  expansionism  intellectualism  sectarianism  sensationalism  authoritarianism  republicanism  utilitarianism  cosmopolitanism  environmentalism  microorganism  totalitarianism  constitutionalism  egalitarianism  humanitarianism  hidden  fiction  villain  thicken  women  written  kitchen  friction  chicken  linen  addiction  affliction  ribbon  ridden  bitten  diction  pavilion  pigeon  silken  eviction  kitten  smitten  sylvan  underwritten  opinion  million  conviction  billion  civilian  dominion  piston  penicillin  stricken  depiction  unwritten  nonfiction  pinion  quicken  ascription  bouillon  interdiction  children  description  distinction  religion  jurisdiction  prediction  prescription  crimson  benediction  kinsmen  rewritten  christian  infliction  trillion  vermilion  dereliction  midshipman  overridden  unchristian  contradiction  extinction  inscription  restriction  subscription  transcription  conscription  constriction  encryption  crucifixion  contradistinction