There are in total 149 words ending with the letter M and 14 letters in length. Word Length abstractionism 14 allelomorphism 14 andromonoecism 14 anthropophuism 14 antialcoholism 14 anticapitalism 14 antiliberalism 14 antimilitarism 14 antiquarianism 14 antiradicalism 14 apheliotropism 14 apocalypticism 14 associationism 14 behaviouralism 14 bidialectalism 14 bioregionalism 14 breatharianism 14 centenarianism 14 centripetalism 14 chondrocranium 14 chordamesoderm 14 clavicytherium 14 conservatorium 14 constructivism 14 continentalism 14 cruciverbalism 14 cryptorchidism 14 cyanobacterium 14 cyberterrorism 14 dichromaticism 14 disciplinarium 14 disequilibrium 14 dissolutionism 14 echocardiogram 14 egalitarianism 14 electromyogram 14 encyclopaedism 14 endoparasitism 14 evangelicalism 14 exceptionalism 14 existentialism 14 exocannibalism 14 extensionalism 14 ferrimagnetism 14 ferromagnetism 14 fideicommissum 14 flexitarianism 14 fundamentalism 14 galvanotropism 14 heterochronism 14 heteromorphism 14 heterothallism 14 hobbledehoydom 14 hobbledehoyism 14 holometabolism 14 homochromatism 14 homoeomorphism 14 hypercriticism 14 hypermodernism 14 hypochondriasm 14 hypothyroidism 14 incrementalism 14 indifferentism 14 inspirationism 14 intentionalism 14 interactionism 14 intersexualism 14 intuitionalism 14 libertarianism 14 lipogrammatism 14 liquidationism 14 lymphangiogram 14 matriarchalism 14 megasporangium 14 metachromatism 14 millenarianism 14 monochromatism 14 monolingualism 14 multiracialism 14 narcoterrorism 14 necessarianism 14 neocolonialism 14 nitrobacterium 14 noncognitivism 14 nonequilibrium 14 nonobjectivism 14 obstructionism 14 operationalism 14 overenthusiasm 14 paleomagnetism 14 paragrammatism 14 parajournalism 14 patriarchalism 14 pentadactylism 14 perfectibilism 14 peripateticism 14 phallocentrism 14 philanthropism 14 photoperiodism 14 piezomagnetism 14 pococuranteism 14 polychromatism 14 polysynthesism 14 polysynthetism 14 postclassicism 14 predeterminism 14 prescriptivism 14 probabiliorism 14 progressionism 14 prohibitionism 14 proletarianism 14 pseudomorphism 14 psilanthropism 14 punctuationism 14 quadrupedalism 14 quattrocentism 14 radiostrontium 14 reactionaryism 14 restitutionism 14 restorationism 14 restrictionism 14 rhynchosporium 14 sabbatarianism 14 sacramentalism 14 sceuophylacium 14 semiparasitism 14 sensationalism 14 sentimentalism 14 servomechanism 14 spermatogonium 14 stalactitiform 14 substantialism 14 synaposematism 14 telejournalism 14 territorialism 14 tetartohedrism 14 theocentricism 14 theriomorphism 14 thermochromism 14 traditionalism 14 transgenderism 14 transsexualism 14 transvestitism 14 tripersonalism 14 trituberculism 14 ultramodernism 14 ultramontanism 14 unsectarianism 14 utilitarianism 14