Here's what rhymes with ositivism.
                        
                        
                    
                                schism  sophism  prism  dualism  fanaticism  eroticism  fatalism  aphorism  fetishism  hedonism  holism  stoicism  chrism  solecism  tropism  socialism  heroism  journalism  optimism  symbolism  terrorism  activism  cynicism  dynamism  federalism  feudalism  modernism  pessimism  positivism  scepticism  catechism  egoism  egotism  nihilism  pacifism  paganism  separatism  anarchism  animism  chauvinism  exorcism  hypnotism  nepotism  ostracism  pauperism  recidivism  shamanism  albinism  archaism  solipsism  synergism  witticism  purism  tokenism  criticism  mechanism  metabolism  organism  nationalism  antagonism  despotism  feminism  liberalism  mysticism  pluralism  skepticism  altruism  barbarism  embolism  empiricism  formalism  humanism  naturalism  rationalism  relativism  rheumatism  cannibalism  dogmatism  evangelism  paternalism  centralism  elitism  euphemism  favoritism  heathenism  legalism  lyricism  mannerism  monasticism  parasitism  plagiarism  populism  scholasticism  automatism  botulism  exoticism  favouritism  isomerism  mesmerism  negativism  neutralism  racialism  anabolism  charlatanism  futurism  philistinism  specialism  capitalism  communism  patriotism  alcoholism  conservatism  materialism  determinism  magnetism  parallelism  pragmatism  radicalism  romanticism  unionism  absolutism  anachronism  classicism  collectivism  consumerism  hyperthyroidism  hypothyroidism  militarism  narcissism  regionalism  secularism  agnosticism  aneurism  astigmatism  behaviorism  commercialism  corporatism  eclecticism  emotionalism  factionalism  functionalism  isolationism  mercantilism  provincialism  revisionism  voluntarism  abolitionism  cretinism  exhibitionism  parochialism  perfectionism  proselytism  puritanism  revivalism  sectionalism  syndicalism  adventurism  bimetallism  galvanism  imperialism  colonialism  professionalism  authoritarianism  postmodernism  protectionism  sectarianism  traditionalism  clericalism  ecumenism  gradualism  impressionism  interventionism  individualism  bilingualism  fundamentalism  industrialism  internationalism  republicanism  antisemitism  expansionism  sensationalism  sentimentalism  evangelicalism  expressionism  somnambulism  cosmopolitanism  egalitarianism  existentialism  intellectualism  anticommunism  totalitarianism  utilitarianism  environmentalism  humanitarianism  microorganism  transcendentalism  constitutionalism  electromagnetism  Words that almost rhyme with ositivism
position  vision  rhythm  arisen  risen  supposition  fission  apposition  mizzen  given  addition  decision  division  opposition  edition  listen  mission  permission  physician  prison  provision  petition  supervision  audition  riven  stiffen  tradition  commission  driven  television  transition  admission  ambition  precision  suspicion  abolition  collision  deposition  emission  incision  partition  revision  submission  superstition  excision  forgiven  imposition  omission  subdivision  tuition  attrition  derision  fruition  magician  sedition  volition  envision  paroxysm  patrician  striven  dietitian  ebullition  glisten  prevision  rescission  tactician  condition  definition  composition  transmission  acquisition  algorithm  disposition  proposition  repetition  coalition  cognition  exposition  politician  prohibition  ignition  musician  remission  admonition  apparition  circumcision  demolition  erudition  juxtaposition  preposition  technician  dentition  imprison  indecision  intermission  logarithm  presupposition  superposition  cataclysm  logician  statistician  theoretician  academician  imprecision  competition  expedition  ammunition  exhibition  inhibition  intuition  nutrition  clinician  mathematician  requisition  contrition  inquisition  interposition  rendition  disquisition  premonition  rhetorician  superimposition  munition  readmission  recognition  decomposition  transposition  extradition  indisposition  precondition  redefinition  manumission  obstetrician  pediatrician  diagnostician  predisposition  electrician  malnutrition  serum  theorem  cecum  system  wisdom  victim  fearsome  gingham  kingdom  symptom  dictum  gypsum  winsome  pilgrim  ecosystem