Here's what rhymes with demensum.
winsome Words that almost rhyme with demensum
crimson gypsum fearsome besom lyceum system wisdom rhythm serum victim theorem dictum cecum gingham kingdom symptom prism pilgrim schism chrism feminism journalism optimism terrorism activism cynicism dualism dynamism modernism pessimism egoism eroticism nihilism pacifism paganism anarchism animism aphorism elitism fetishism hedonism holism mannerism albinism synergism witticism purism sophism tokenism tropism criticism mechanism algorithm organism heroism mysticism symbolism altruism barbarism determinism ecosystem embolism rheumatism scepticism catechism dogmatism egotism fatalism logarithm paroxysm aneurism cataclysm chauvinism euphemism heathenism hypnotism lyricism nepotism pauperism plagiarism shamanism stoicism archaism automatism botulism cretinism isomerism mesmerism bimetallism capitalism communism socialism antagonism despotism liberalism pluralism skepticism empiricism federalism feudalism formalism humanism magnetism naturalism positivism pragmatism radicalism relativism unionism classicism evangelism militarism narcissism paternalism regionalism separatism astigmatism behaviorism exorcism favoritism legalism ostracism parasitism populism recidivism revisionism abolitionism exoticism negativism neutralism racialism adventurism anabolism dilettantism futurism galvanism hooliganism invalidism minimalism monetarism mongolism solecism specialism metabolism imperialism nationalism patriotism materialism fanaticism parallelism rationalism absolutism anachronism bilingualism cannibalism collectivism consumerism agnosticism centralism commercialism corporatism emotionalism provincialism voluntarism ecumenism exhibitionism favouritism impressionism parochialism perfectionism puritanism solipsism syndicalism charlatanism creationism philistinism triumphalism alcoholism colonialism conservatism romanticism postmodernism protectionism republicanism secularism antisemitism eclecticism expansionism factionalism isolationism mercantilism monasticism sectarianism traditionalism expressionism gradualism proselytism revivalism sectionalism agrarianism individualism professionalism hyperthyroidism hypothyroidism industrialism functionalism scholasticism sensationalism sentimentalism anticommunism clericalism interventionism authoritarianism fundamentalism internationalism utilitarianism egalitarianism existentialism intellectualism microorganism evangelicalism somnambulism totalitarianism constitutionalism cosmopolitanism environmentalism humanitarianism electromagnetism transcendentalism