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