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