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