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