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