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