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