There are 574 fourteen-letter words containing 2A, N and 2S, https://www.bestwordlist.com/c/a/5/14letterwordswithaanss.htm ABOMINABLENESS ABORIGINALISMS ABRASIVENESSES ABSTRACTEDNESS ABSTRACTIONISM ABSTRACTIONIST ABSTRACTNESSES ACCEPTABLENESS ACCIDENTALISMS ACCIDENTALNESS ACCURATENESSES ACCUSTOMATIONS ACTUALISATIONS ADAPTATIONISTS ADAPTIVENESSES ADEQUATENESSES ADMEASUREMENTS ADMINISTRATORS ADORABLENESSES ADULARESCENCES AEROSOLISATION AFFORESTATIONS AFTERSENSATION ALKALESCENCIES AMATEURISHNESS AMENABLENESSES AMICABLENESSES ANAESTHETISING ANAGRAMMATISES ANAGRAMMATISMS ANAGRAMMATISTS ANALPHABETISMS ANAPHRODISIACS ANARTHROUSNESS ANASTIGMATISMS ANATOMISATIONS ANELASTICITIES ANGIOSTOMATOUS ANGLICISATIONS ANIMADVERSIONS ANIMALISATIONS ANISODACTYLOUS ANISOMETROPIAS ANKYLOSAURUSES ANNEXATIONISMS ANNEXATIONISTS ANNUITISATIONS ANONYMISATIONS ANSWERABLENESS ANTIAGGRESSION ANTIASTHMATICS ANTIBARBARUSES ANTIDEPRESSANT ANTIDESICCANTS ANTIFORMALISMS ANTIFORMALISTS ANTIHARASSMENT ANTIHISTAMINES ANTIMECHANISTS ANTIMETATHESES ANTIMETATHESIS ANTINOMIANISMS ANTIPARASITICS ANTIPERISTASES ANTIPERISTASIS ANTIQUATEDNESS ANTIRITUALISMS ANTISEPARATIST ANTISOCIALISMS ANTISOCIALISTS ANTISPASMODICS ANTONINIANUSES APOCRYPHALNESS APPARENTNESSES APPLICABLENESS ARABICISATIONS ARACHNOLOGISTS AROMATISATIONS ARTICULATENESS ARTIFICIALNESS ASCERTAINMENTS ASSASSINATIONS ASSAULTIVENESS ASSEVERATINGLY ASSISTANTSHIPS ASSOCIATIONISM ASSOCIATIONIST ATTAINABLENESS ATTRACTIVENESS AUTHORISATIONS AVARICIOUSNESS AVOWABLENESSES BACKHANDEDNESS BACKWARDNESSES BACTERISATIONS BALKANISATIONS BALSAMINACEOUS BANCASSURANCES BANDERSNATCHES BANDSPREADINGS BARBARISATIONS BARNSBREAKINGS BASTARDISATION BEARABLENESSES BIPARTISANISMS BIPARTISANSHIP BLAMABLENESSES BRUTALISATIONS CADAVEROUSNESS CALAMITOUSNESS CALCULATEDNESS CAMPANOLOGISTS CANDIDATESHIPS CANTONISATIONS CARBONISATIONS CARBURISATIONS CARCINOMATOSES CARCINOMATOSIS CARTELISATIONS CASUALISATIONS CASUALIZATIONS CATECHISATIONS CAUTERISATIONS CEPHALISATIONS CHANGEABLENESS CHARGEABLENESS CHARITABLENESS CICATRISATIONS CLASSIFICATION COASTGUARDSMAN COASTGUARDSMEN COCAINISATIONS COENAESTHESIAS COMPARABLENESS COMPASSIONABLE COMPASSIONATED COMPASSIONATES CONNATURALISES CONNATURALNESS CONSTABULARIES CONSUBSTANTIAL CONTRABANDISMS CONTRABANDISTS CONTRABASSISTS CONTRABASSOONS CONTRARIANISMS COUNTERASSAULT CRAFTSMANSHIPS CRYSTALISATION DAMNABLENESSES DEAMINISATIONS DECAPSULATIONS DENATIONALISES DEREALISATIONS DESALINISATION DEXAMETHASONES DIABOLICALNESS DIAGNOSTICIANS DIAPHANOUSNESS DIAZOTISATIONS DISAFFIRMANCES DISAPPEARANCES DISASSOCIATING DISASSOCIATION DISNATURALISED DISNATURALISES DISNATURALIZES DISPARAGEMENTS DISPENSATIONAL DISPLANTATIONS DISPLEASANTING DISSERTATIONAL DOGMATICALNESS DOGMATISATIONS DOLLARISATIONS DRACUNCULIASES DRACUNCULIASIS DRAFTSMANSHIPS DRAMATISATIONS EMBARRASSINGLY EMBARRASSMENTS EMPHATICALNESS ENCAPSULATIONS ENDOPARASITISM ENTHUSIASTICAL ENTOMOSTRACANS EUPHAUSIACEANS EXTRAVASATIONS FACTORISATIONS FALLACIOUSNESS FALSIFICATIONS FAMILIARNESSES FARCICALNESSES FASCICULATIONS FATIGUABLENESS FAVOURABLENESS FEUDALISATIONS FLAGELLANTISMS FLAGRANTNESSES FORMALISATIONS FRACTIONALISES FRACTIONALISMS FRACTIONALISTS FRAGRANTNESSES FRUITARIANISMS GALACTOSAMINES GALLICISATIONS GALVANISATIONS GALVANOSCOPIES GERMANISATIONS GLAMORISATIONS GLOBALISATIONS GRADABLENESSES GRANDSTANDINGS GRANITISATIONS GRANTSMANSHIPS GYNAECOMASTIAS GYNAECOMASTIES HABITUALNESSES HAEMATOGENESES HAEMATOGENESIS HARDHANDEDNESS HARDHEADEDNESS HARDINGGRASSES HARMONISATIONS HARUSPICATIONS HAUSSMANNISING HAUSSMANNIZING HEXOSAMINIDASE HYALINISATIONS HYALURONIDASES HYPERAWARENESS IMAGINABLENESS IMMACULATENESS IMMATERIALNESS IMMUNOASSAYIST IMPASSABLENESS IMPLACABLENESS INACCURATENESS INADEQUATENESS INCAPSULATIONS INSANITARINESS INSATIABLENESS INSTANTIATIONS INTRANSIGEANTS INTRAVASATIONS INVALUABLENESS INVARIABLENESS IRRATIONALISES IRRATIONALISMS IRRATIONALISTS IRRATIONALNESS ISOALLOXAZINES ITALICISATIONS JARGONISATIONS LABIALISATIONS LAMENTABLENESS LAUDABLENESSES LAXATIVENESSES LEMMATISATIONS LIBRARIANSHIPS LINEARISATIONS MAGNETISATIONS MAGNETOSTATICS MAINSTREAMINGS MAJESTICALNESS MALABSORPTIONS MALACOSTRACANS MALADJUSTMENTS MALADMINISTERS MALAPERTNESSES MANAGEABLENESS MANAGERIALISMS MANAGERIALISTS MANIFESTATIONS MANRIKIGUSARIS MARKETABLENESS MARKETISATIONS MARSIPOBRANCHS MARTYRISATIONS MASSIFICATIONS MASTIGOPHORANS MATERIALNESSES MEASURABLENESS MECHANICALISMS MECHANICALNESS MECHANISATIONS MEDIATISATIONS MEGALOSAURIANS METALLISATIONS METAPHYSICIANS MISALLOCATIONS MISEVALUATIONS MISMANAGEMENTS MISTRANSLATING MISTRANSLATION MUSICALISATION MUTUALISATIONS NARCOCATHARSES NARCOCATHARSIS NARCOTISATIONS NARRATOLOGISTS NARROWCASTINGS NECESSARIANISM NECESSITARIANS NEMATODIRIASES NEMATODIRIASIS NEOCAPITALISMS NEOCAPITALISTS NEURAMINIDASES NEURASTHENIACS NEUROBLASTOMAS NONCAPITALISTS NONMAINSTREAMS NONSENSATIONAL NONSTATISTICAL NORMALISATIONS NORTHEASTWARDS OCCASIONALISMS OCCASIONALISTS ORACULARNESSES PALATIALNESSES PALEOBOTANISTS PALLETISATIONS PALPABLENESSES PANAESTHETISMS PANARTHRITISES PANCHROMATISMS PANCREATITISES PANGRAMMATISTS PANSEXUALITIES PANSPERMATISMS PANSPERMATISTS PANTISOCRACIES PANTISOCRATIST PARAMAGNETISMS PARAMENSTRUUMS PARANTHROPUSES PARASITISATION PARDONABLENESS PARTICULARNESS PASSABLENESSES PASSIONATENESS PASTEURISATION PASTORALNESSES PATRONISATIONS PAUPERISATIONS PHALANSTERIANS PHALANSTERISMS PHALANSTERISTS PHYSHARMONICAS PLACABLENESSES PLASTICISATION PLATINISATIONS PLEASANTNESSES PLESIOSAURIANS PLURALISATIONS POSTLAPSARIANS POSTMENOPAUSAL PRIVATISATIONS PROCRASTINATES PROPAGABLENESS PROPAGANDISERS PROSOPAGNOSIAS PROSTAGLANDINS PSEPHOANALYSES PSEPHOANALYSIS PSYCHASTHENIAS PSYCHOANALYSED PSYCHOANALYSER PSYCHOANALYSES PSYCHOANALYSIS PSYCHOANALYSTS PSYCHOANALYZES QUAESTIONARIES RADIALISATIONS RADIORESISTANT RAMPAGEOUSNESS RANDOMISATIONS RATEABLENESSES RATIONALNESSES REACTIONARISMS REACTIONARISTS READABLENESSES REASONABLENESS RECONNAISSANCE REMARKABLENESS RENATIONALISES RESTAURANTEURS RETRANSLATIONS REWARDABLENESS RHABDOMANTISTS RITUALISATIONS SACCHARINITIES SACCHARISATION SACRALISATIONS SACRALIZATIONS SACRAMENTALISM SACRAMENTALIST SACRAMENTARIES SACROSANCTNESS SALEABLENESSES SALUTARINESSES SALVABLENESSES SANGUINARINESS SANITARIANISMS SANITARINESSES SANITATIONISTS SAVEABLENESSES SCALABLENESSES SCANDALISATION SCANDALMONGERS SCANDALOUSNESS SCAPULIMANCIES SCAPULOMANCIES SCARIFICATIONS SCENARISATIONS SCENARIZATIONS SCHEMATISATION SEASONABLENESS SEASONALNESSES SECTARIANISING SECULARISATION SEMICARBAZONES SEMIPALMATIONS SENSATIONALISE SENSATIONALISM SENSATIONALIST SENSATIONALIZE SENSUALISATION SENSUALIZATION SEPARATENESSES SEPARATIONISMS SEPARATIONISTS SEPARATIVENESS SEPTUAGENARIES SERIALISATIONS SERIALIZATIONS SESQUIPEDALIAN SEXUALISATIONS SEXUALIZATIONS SHADOWCASTINGS SHAMEFACEDNESS SHERARDISATION SIGNALISATIONS SIGNALIZATIONS SKATEBOARDINGS SOCIALISATIONS SOCIALIZATIONS SOMNAMBULANCES SOMNAMBULATORS SPATIALISATION SPECIALISATION SPORADICALNESS SQUANDERMANIAS STABILISATIONS STABILIZATIONS STAGECOACHINGS STAINABILITIES STALWARTNESSES STATESMANLIEST STATESMANSHIPS STATIONARINESS STATIONMASTERS STIGMATISATION STRANGULATIONS STRATOVOLCANOS SUBALLOCATIONS SUBAPPEARANCES SUBASSOCIATION SUBMANDIBULARS SUBSATURATIONS SUBSTANTIALISE SUBSTANTIALISM SUBSTANTIALIST SUBSTANTIALITY SUBSTANTIALIZE SUBSTANTIATING SUBSTANTIATION SUBSTANTIATIVE SUBSTANTIATORS SUBSTANTIVALLY SUFFRAGANSHIPS SULFANILAMIDES SULPHADIAZINES SUMMARISATIONS SUMMARIZATIONS SUPERNATATIONS SUPPLANTATIONS SUPRALAPSARIAN SUPRASEGMENTAL SUSTAINABILITY SYLLABICATIONS SYNAPOSEMATISM SYSTEMATICIANS TAMEABLENESSES TANTALISATIONS TARTARISATIONS TELANGIECTASES TELANGIECTASIS TETRAGONALNESS THANATOLOGISTS THEATRICALNESS THEMATISATIONS THREADBARENESS TRAGICALNESSES TRANSACTINIDES TRANSCALENCIES TRANSCAUCASIAN TRANSCRIPTASES TRANSCUTANEOUS TRANSEXUALISMS TRANSLITERATES TRANSLOCATIONS TRANSMIGRATORS TRANSMISSIONAL TRANSMITTANCES TRANSMUTATIONS TRANSPARENCIES TRANSPARENTISE TRANSPIRATIONS TRANSPLANTINGS TRANSPORTANCES TRANSSEXUALISM TRANSSEXUALITY TRANSVERSALITY TYRANNICALNESS TYRANNOSAURIDS UNAVAILINGNESS UNBEARABLENESS UNCLASSIFIABLE UNCLASSIFIABLY UNEMBARRASSING UNFASHIONABLES UNICAMERALISMS UNICAMERALISTS UNILATERALISMS UNILATERALISTS UNPASSABLENESS UNPLEASANTNESS UNPLEASANTRIES UNREADABLENESS UNSALABILITIES UNSATISFACTION UNSATISFACTORY UNSECTARIANISM UNSHAKABLENESS UNSTANDARDISED UNSYSTEMATICAL UNTAMEABLENESS URALITISATIONS URANOGRAPHISTS VACUOLISATIONS VALUABLENESSES VANDALISATIONS VARIABLENESSES VARIOLISATIONS VEGETARIANISMS VERBALISATIONS VERNACULARISES VERNACULARISMS VERNACULARISTS VERNALISATIONS VILLAGISATIONS VISUALISATIONS VISUALIZATIONS VOCATIONALISMS VOCATIONALISTS VOLCANISATIONS VRAISEMBLANCES VULCANISATIONS VULGARISATIONS WAPPENSHAWINGS YACHTSMANSHIPS