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