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