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