Mammoth Uncensored Word List:
186 words ending with sm, 13 letters long

aboriginalism abstentionism academicalism accidentalism agroterrorism aldosteronism anagrammatism analphabetism anastigmatism androcentrism androdioecism anisotrophism annexationism anticommunism antinomianism antiritualism antisepticism antisocialism antiterrorism apochromatism apogeotropism aristocratism autochthonism autoeroticism autoschediasm bibliophilism biculturalism bipartisanism blackguardism blepharospasm brachypterism bradyseismism bureaucratism caesaropapism catastrophism catechumenism ceremonialism chiaroscurism chronotropism colloquialism commercialism compatriotism conceptualism connectionism contortionism contrabandism corporativism cosmopolitism credentialism descriptivism diageotropism dilettanteism doctrinairism dodecaphonism dunderheadism ecumenicalism electromerism encyclopedism epigrammatism equestrianism ethnocentrism exhibitionism exoparasitism expressionism feuilletonism filibusterism flagellantism fractionalism fruitarianism functionalism generationism geocentricism gynomonoecism gyromagnetism heterostylism histrionicism homeomorphism homoeroticism homosexualism hyperurbanism iconomaticism immaterialism impersonalism impossibilism impressionism indeterminism individualism industrialism infallibilism irrationalism isodimorphism liberationism managerialism mathematicism mechanicalism mesocephalism metempiricism microorganism middlebrowism millennialism millennianism millenniarism monometallism monophysitism monosyllabism monotheletism monothelitism monumentalism mountebankism multipartyism neoclassicism neoliberalism neoplasticism nonconformism occasionalism occidentalism orthognathism paedomorphism panaesthetism panchromatism panspermatism paramagnetism particularism pedestrianism perfectionism perspectivism phalansterism phenomenalism philhellenism phlogistonism photochromism plagiotropism pococurantism polydactylism polydaemonism polynomialism polysyllabism polysyllogism postmodernism primordialism progressivism protectionism proverbialism provincialism prudentialism reactionarism republicanism revolutionism sacerdotalism sadomasochism sanitarianism saprotrophism scholasticism scripturalism separationism skeuomorphism sociocentrism solifidianism stereotropism structuralism suffragettism suggestionism superorganism tautochronism televangelism thaumaturgism theanthropism theatricalism thermotropism thigmotropism tolerationism transexualism trichromatism trilateralism trilingualism triliteralism trophotropism unicameralism unilateralism unilingualism vegetarianism ventriloquism vernacularism vocationalism xanthochroism zygodactylism