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