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