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