What rhymes with hedonism

1 Syllable
abysm, chrism, prism, schism, shiism
2 Syllables
ageism, agism, altruism, amah, atheism, autism, bahaism, bismuth, bossism, bromism, buddhism, caeoma, cataclysm, chartism, chemism, chiasma, chisholm, classism, cockneyism, cosmism, cronyism, cultism, czarism, dadaism, dereism, dichroism, dwarfism, echoism, egoism, erythrism, euphuism, fauvism, fideism, filmdom, gama, gandhiism, grecism, grundyism, hamza, hebraism, heroism, hinduism, ischium, ism, jainism, jingoism, judaism, kama, leftism, lobbyism, loyalism, lyrism, mazdaism, mithraism, monism, nama, naziism, nazism, nomism, nudism, pantheism, papism, paroxysm, paroxysms, pianism, plasma, pleochroism, pleonasm, polytheism, porism, prosaism, psychism, ptyalism, rhythmist, rightism, rowdyism, sadism, scientism, scotism, seismism, sikhism, simplism, statism, stoicism, subsystem, thomism, titoism, toryism, tourism, trichroism, tsarism, tychism, voltaism, voyeurism, whiggism
3 Syllables
absinthism, absurdism, acosmism, actinism, activism, agama, alarmism, albinism, algorism, amorphism, anarchism, anglicism, animism, aphorism, apriorism, archiplasm, arianism, arrhythmia, asama, asterism, atavism, atticism, auteurism, averroism, bahamas, belletrism, benthamism, bolshevism, botulism, bourbonism, brahminism, briticism, britishism, brutalism, buchmanism, cabalism, caesarism, calvinism, careerism, cartelism, cassaba, catechism, celticism, centralism, charisma, chauvinism, christendom, christianism, chromatism, clarissa, classicism, cocainism, communism, conformism, creationism, cretinism, criticism, cynicism, daltonism, darwinism, demonism, despotism, diastrophism, djellaba, docetism, dogmatism, dualism, dynamism, dysphemism, ecosystem, egotism, elitism, embolism, endemism, englishism, erethism, ergotism, escapism, euphemism, exorcism, expertism, extremism, fabianism, fatalism, feminism, feudalism, finalism, foreignism, formalism, formulism, fortuitism, frotteurism, galenism, gallicism, galvanism, gangsterism, gautama, gentilism, germanism, gestaltism, giantism, gigantism, globalism, gnosticism, gongorism, gothicism, hasidism, hedonism, hellenism, henotheism, herbalism, heterism, heteronym, histogram, hitlerism, hohokam, hoodlumism, hucksterism, humanism, hybridism, hylozoism, hypnotism, idiotism, idolism, imagism, irishism, islamism, jansenism, jesuitism, journalism, kinshasa, kolomna, lambdacism, landlordism, latinism, legalism, leninism, localism, lyricism, lysenkoism, machismo, magnetism, mahatma, manama, marcionism, masochism, maxima, mazama, mazuma, mechanism, melanism, melisma, mendelism, mesmerism, methodism, microseism, modernism, mormonism, morphinism, moslemism, mysticism, mythicism, myxoma, narcissism, narcotism, nativism, nepotism, neutralism, nihilism, obama, occultism, ophthalmia, opiumism, optimism, organism, ostracism, pacifism, paganism, pajama, panama, passivism, pasteurism, pauperism, pessimism, phallicism, pharisaism, phosphorism, pietism, platonism, platysma, pleomorphism, pluralism, pointillism, pragmatism, prelatism, prochronism, pugilism, pyrrhonism, quietism, quixotism, rabbinism, realism, reformism, revanchism, rheumatism, rhotacism, rigorism, romanism, ruralism, satanism, savagism, sayonara, schematism, scotticism, semitism, shamanism, silicium, sinapism, skepticism, solarism, solecism, solipsism, somalia, sovietism, spinozism, stalinism, stigmatism, suffragism, supersystem, syllabism, syllogism, symbolism, synchronism, syncretism, synergism, terrorism, titanism, totemism, transformism, transvestism, ultimo, urbanism, vampirism, vanguardism, veganism, verbalism, verismo, vitalism, vocalism, volcanism, vulcanism, vulgarism, weismannism, welfarism, westernism, witticism, xanthochroism, yamaha, zionism
4 Syllables
absolutism, academism, achromatism, adiaphorism, adventurism, afrocentrism, agnosticism, alabama, alcoholism, alienism, allomerism, allomorphism, amateurism, amoralism, anabaptism, anachronism, anamorphism, anaptyxis, ancohuma, anglocentrism, animalism, animatism, anomalism, antagonism, antifascism, antilogism, asceticism, astigmatism, asynchronism, atacama, athleticism, autoerotism, automatism, automorphism, barbarianism, bilingualism, bimetallism, bipedalism, biracialism, boosterism, byzantinism, canadianism, cannibalism, capitalism, catabolism, catalonia, catastrophism, catholicism, chattanooga, chromaticism, classicalism, clericalism, collectivism, commensalism, constructivism, consumerism, contrarianism, corporatism, cyrenaicism, defeatism, descriptivism, determinism, diabolism, diatonicism, dichromatism, didacticism, digitalism, docudrama, eclecticism, economism, ecumenism, egocentrism, enthusiasm, epicurism, eroticism, erraticism, eudemonism, eunuchoidism, eurocentrism, evangelism, exoticism, externalism, favoritism, federalism, fruitarianism, functionalism, genteelism, gradualism, heathenism, hegemonism, hermeticism, hiroshima, hispanicism, historicism, homeomorphism, homomorphism, hyperbolism, hypocorism, hypozeugma, iconoclasm, idealism, illuminism, industrialism, infantilism, intuitivism, invalidism, iotacism, irenicism, isobarism, isochronism, isotropism, italianism, jacobitism, laconicism, liberalism, libertinism, literalism, lutheranism, malapropism, mandarinism, manorialism, meliorism, mercantilism, messianism, metabolism, metabolisms, metamerism, militarism, minimalism, minnesota, mithridatism, monasticism, monetarism, monodrama, mutualism, naturalism, negativism, neoclassicism, neologism, neoplasticism, neoplatonism, neoterism, neuroticism, nicotinism, nominalism, nonconformism, objectivism, obscurantism, obsoletism, obstructionism, officialdom, oklahoma, ontologism, opportunism, organicism, orientalism, pacificism, parachronism, parallelism, paralogism, paramorphism, parasitism, parkinsonism, parochialism, pastoralism, paternalism, patriotism, pedanticism, personalism, philanthropism, philistinism, philosophism, photorealism, physicalism, plagiarism, positivism, pragmaticism, primitivism, propagandism, protestantism, psychodrama, puerilism, racialism, radicalism, relativism, revivalism, ribosome, ritualism, romanticism, ruffianism, saratoga, sardonicism, sectionalism, secularism, sensualism, separatism, serialism, socialism, somnambulism, specialism, stakhanovism, structuralism, subjectivism, substantialism, surrealism, sybaritism, syndicalism, systematism, tautomerism, textualism, thigmotropism, tractarianism, transvestitism, trichromatism, troglodytism, unionism, utopianism, ventriloquism, victorianism, vigilantism, voluntaryism, volunteerism, wesleyanism, worrisome, zoroastrianism
5 Syllables
academicism, aestheticism, americanism, anthropocentrism, anticommunism, antifeminism, antihumanism, antisemitism, antiterrorism, autoeroticism, behaviorism, berkeleianism, bicameralism, bisexualism, bohemianism, colloquialism, colonialism, commercialism, conceptualism, confucianism, conventionalism, corporativism, departmentalism, dialecticism, diamagnetism, ecumenicism, emotionalism, episcopalism, epistemology, equestrianism, erastianism, esotericism, essentialism, expansionism, expressionism, ferromagnetism, fundamentalism, homoeroticism, hypercriticism, imperialism, impressionism, incendiarism, indeterminism, indifferentism, individualism, instrumentalism, isodimorphism, materialism, medievalism, mercurialism, metasomatism, monochromatism, monolingualism, monometalism, monumentalism, muhammadanism, multilingualism, multimedia, officialism, overoptimism, paramagnetism, pedestrianism, pelagianism, pentecostalism, perfectionism, phenomenalism, presbyterianism, professionalism, protectionism, provincialism, pythagoreanism, regionalism, religionism, republicanism, sacerdotalism, sacramentalism, scapegoatism, sectarianism, sensationalism, sentimentalism, servomechanism, spencerianism, spiritualism, sublapsarianism, ticonderoga, transcendentalism, transsexualism, universalism, vernacularism, vocationalism
6 Syllables
annexationism, anticlericalism, anticolonialism, antimilitarism, authoritarianism, ceremonialism, communitarianism, configurationism, conservationism, constitutionalism, cosmopolitanism, deconstructionism, ecclesiasticism, electromagnetism, epithalamia, evangelicalism, evolutionism, existentialism, experimentalism, heracliteanism, humanitarianism, immaterialism, intellectualism, internationalism, isolationism, libertarianism, metropolitanism, millenarianism, neoliberalism, peripateticism, postimpressionism, premillennialism, presentationism, preternaturalism, proletarianism, radiotelegram, reconstructionism, revolutionism, stereoisomerism, supernaturalism, superpatriotism, swedenborgianism, territorialism, totalitarianism, traditionalism, ubiquitarianism, ultranationalism, unilateralism
7 Syllables
aristotelianism, congregationalism, egalitarianism, entrepreneurialism, hereditarianism, necessitarianism, neocolonialism, neoimpressionism, uniformitarianism, utilitarianism, valetudinarianism
8 Syllables
denominationalism, parliamentarianism, representationalism