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