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