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