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