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