There are 783 fourteen-letter words containing 2A and 2S, https://www.bestwordlist.com/c/a/4/14letterwordswithaass.htm ABOMINABLENESS ABORIGINALISMS ABRASIVENESSES ABSTRACTEDNESS ABSTRACTIONISM ABSTRACTIONIST ABSTRACTNESSES ACADEMICALISMS ACATAMATHESIAS ACCEPTABLENESS ACCIDENTALISMS ACCIDENTALNESS ACCURATENESSES ACCUSTOMATIONS ACHROMATOPSIAS ACTUALISATIONS ADAPTATIONISTS ADAPTIVENESSES ADDRESSABILITY ADEQUATENESSES ADMEASUREMENTS ADMINISTRATORS ADORABLENESSES ADULARESCENCES ADVISABILITIES AEROBALLISTICS AEROSOLISATION AFFORESTATIONS AFTERSENSATION ALKALESCENCIES AMATEURISHNESS AMBASSADORSHIP AMBASSADRESSES AMENABLENESSES AMICABLENESSES AMPHIARTHROSES AMPHIARTHROSIS 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 APOCHROMATISMS APOCRYPHALNESS APOTHEGMATISES APOTHEGMATISTS APPARENTNESSES APPLICABLENESS AQUACULTURISTS ARABICISATIONS ARACHNOLOGISTS ARCHAEOLOGISTS ARISTOCRATISMS AROMATISATIONS ARTHROPLASTIES ARTICULATENESS ARTIFICIALISES ARTIFICIALNESS ASCERTAINMENTS ASSASSINATIONS ASSAULTIVENESS ASSEVERATINGLY ASSIMILABILITY ASSIMILATIVELY ASSISTANTSHIPS ASSOCIATESHIPS ASSOCIATIONISM ASSOCIATIONIST ASSUMABILITIES ASTRAPOPHOBIAS ASTROCOMPASSES ATTAINABLENESS ATTRACTIVENESS AUDIOCASSETTES AUTHORISATIONS AUTOSCHEDIASMS AUTOSCHEDIAZES AVARICIOUSNESS AVASCULARITIES AVOWABLENESSES BACKHANDEDNESS BACKSCRATCHERS BACKWARDNESSES BACTERIOSTASES BACTERIOSTASIS BACTERISATIONS BALKANISATIONS BALSAMINACEOUS BANCASSURANCES BANDERSNATCHES BANDSPREADINGS BARBARISATIONS BARNSBREAKINGS BASTARDISATION BEARABLENESSES BIOSTATISTICAL BIPARTISANISMS BIPARTISANSHIP BLACKGUARDISMS BLAMABLENESSES BLEPHAROPLASTS BLEPHAROSPASMS BOUILLABAISSES BRUTALISATIONS BUREAUCRATESES BUREAUCRATISES BUREAUCRATISMS BUREAUCRATISTS CADAVEROUSNESS CAESAROPAPISMS CALAMITOUSNESS CALCULATEDNESS CALLIGRAPHISTS CAMPANOLOGISTS CANDIDATESHIPS CANTONISATIONS CARBONISATIONS CARBURISATIONS CARCINOMATOSES CARCINOMATOSIS CARTELISATIONS CASUALISATIONS CASUALIZATIONS CATASTROPHISMS CATASTROPHISTS CATECHISATIONS CAUTERISATIONS CEPHALISATIONS CHANGEABLENESS CHARACTERISERS CHARGEABLENESS CHARITABLENESS CICATRISATIONS CLASSICALITIES CLASSIFICATION CLASSIFICATORY CLISHMACLAVERS COASTGUARDSMAN COASTGUARDSMEN COCAINISATIONS COCARBOXYLASES COENAESTHESIAS COLLATERALISES COMPARABLENESS COMPARATIVISTS COMPASSIONABLE COMPASSIONATED COMPASSIONATES CONNATURALISES CONNATURALNESS CONSTABULARIES CONSUBSTANTIAL CONTRABANDISMS CONTRABANDISTS CONTRABASSISTS CONTRABASSOONS CONTRARIANISMS COUNTERASSAULT CRAFTSMANSHIPS CRYPTAESTHESIA CRYSTALISATION CRYSTALLISABLE DAMNABLENESSES DEAMINISATIONS DECAPSULATIONS DECARBOXYLASES DECLASSIFIABLE DEMATERIALISES DENATIONALISES DEREALISATIONS DESALINISATION DESQUAMATORIES DEXAMETHASONES DIABOLICALNESS DIAGNOSTICIANS DIAPHANOUSNESS DIAZOTISATIONS DISACCHARIDASE DISAFFIRMANCES DISAPPEARANCES DISARTICULATES DISASSIMILATED DISASSIMILATES DISASSOCIATING DISASSOCIATION DISCAPACITATES DISEMBARRASSED DISEMBARRASSES DISHABILITATES DISNATURALISED DISNATURALISES DISNATURALIZES DISPARAGEMENTS DISPENSATIONAL DISPLANTATIONS DISPLEASANTING DISSERTATIONAL DOGMATICALNESS DOGMATISATIONS DOLLARISATIONS DRACUNCULIASES DRACUNCULIASIS DRAFTSMANSHIPS DRAMATISATIONS ECCLESIASTICAL EMBARRASSINGLY EMBARRASSMENTS EMPHATICALNESS ENCAPSULATIONS ENDOPARASITISM ENTHUSIASTICAL ENTOMOSTRACANS EPIGRAMMATISES EPIGRAMMATISMS EPIGRAMMATISTS ERGASTOPLASMIC EUPHAUSIACEANS EXTRAVASATIONS FACTORISATIONS FALLACIOUSNESS FALSIFICATIONS FAMILIARNESSES FARCICALNESSES FASCICULATIONS FATIGUABLENESS FAVOURABLENESS FEUDALISATIONS FLAGELLANTISMS FLAGRANTNESSES FORMALISATIONS FRACTIONALISES FRACTIONALISMS FRACTIONALISTS FRAGRANTNESSES FRUITARIANISMS GALACTOPOIESES GALACTOPOIESIS GALACTOSAEMIAS GALACTOSAMINES GALACTOSIDASES GALLICISATIONS GALVANISATIONS GALVANOSCOPIES GASTROPLASTIES GASTROVASCULAR GERMANISATIONS GLADIATORSHIPS GLAMORISATIONS GLOBALISATIONS GRADABLENESSES GRANDSTANDINGS GRANITISATIONS GRANTSMANSHIPS GYNAECOMASTIAS GYNAECOMASTIES HABERDASHERIES HABITUALNESSES HAEMATOGENESES HAEMATOGENESIS HAEMATOLOGISTS HAEMATOPOIESES HAEMATOPOIESIS HAEMODIALYSERS HAGIOGRAPHISTS HAMARTHRITISES HARDHANDEDNESS HARDHEADEDNESS HARDINGGRASSES HARMONISATIONS HARUSPICATIONS HAUSSMANNISING HAUSSMANNIZING HEADMASTERSHIP HEXOSAMINIDASE HYALINISATIONS HYALURONIDASES HYPERAESTHESIA HYPERAWARENESS HYPERPARASITES IMAGINABLENESS IMMACULATENESS IMMATERIALISES IMMATERIALISMS IMMATERIALISTS IMMATERIALNESS IMMUNOASSAYIST IMPASSABLENESS IMPLACABLENESS INACCURATENESS INADEQUATENESS INCAPSULATIONS INSANITARINESS INSATIABLENESS INSTANTIATIONS INTRANSIGEANTS INTRAVASATIONS INVALUABLENESS INVARIABLENESS IRRATIONALISES IRRATIONALISMS IRRATIONALISTS IRRATIONALNESS ISOALLOXAZINES ISOCARBOXAZIDS ITALICISATIONS JARGONISATIONS KAKISTOCRACIES KERATOPLASTIES LABIALISATIONS LAMENTABLENESS LAPAROSCOPISTS LAUDABLENESSES LAXATIVENESSES LEMMATISATIONS LIBRARIANSHIPS LINEARISATIONS LOGODAEDALUSES LYMPHOSARCOMAS MAGISTRALITIES MAGISTRATESHIP MAGNETISATIONS MAGNETOSTATICS MAINSTREAMINGS MAJESTICALNESS MALABSORPTIONS MALACOSTRACANS MALACOSTRACOUS MALADJUSTMENTS MALADMINISTERS MALAPERTNESSES MALARIOLOGISTS MALEFACTRESSES MANAGEABLENESS MANAGERIALISMS MANAGERIALISTS MANIFESTATIONS MANRIKIGUSARIS MARKETABLENESS MARKETISATIONS MARSIPOBRANCHS MARTYRISATIONS MASSIFICATIONS MASSOTHERAPIES MASSOTHERAPIST MASTIGOPHORANS MATERIALNESSES MATHEMATICISES MATHEMATICISMS MATRESFAMILIAS MEASURABLENESS MECHANICALISMS MECHANICALNESS MECHANISATIONS MEDIATISATIONS MEGALOSAURIANS MELASTOMACEOUS MELODRAMATISES MELODRAMATISTS METAGRABOLISES METALLISATIONS METAPHOSPHATES METAPHYSICIANS MICROPARASITES MISALLOCATIONS MISAPPRECIATES MISARTICULATES MISCALCULATORS 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 ORCHARDGRASSES OSTEOSARCOMATA OVERDRAMATISES PALATIALNESSES PALEOBOTANISTS PALLETISATIONS PALPABLENESSES PANAESTHETISMS PANARTHRITISES PANCHROMATISMS PANCREATITISES PANGRAMMATISTS PANSEXUALITIES PANSPERMATISMS PANSPERMATISTS PANTISOCRACIES PANTISOCRATIST PAPAPRELATISTS PAPILLOMATOSES PAPILLOMATOSIS PARAMAGNETISMS PARAMENSTRUUMS PARANTHROPUSES PARASITISATION PARASITOLOGIES PARASITOLOGIST PARDONABLENESS PARTICULARISES PARTICULARISMS PARTICULARISTS PARTICULARNESS PASSABLENESSES PASSIONATENESS PASTEURISATION PASTORALNESSES PATRESFAMILIAS PATRONISATIONS PAUPERISATIONS PHALANSTERIANS PHALANSTERISMS PHALANSTERISTS PHARMACEUTISTS PHOTOCATALYSES PHOTOCATALYSIS PHYSHARMONICAS PLACABLENESSES PLASMAPHERESES PLASMAPHERESIS PLASTICISATION PLATINISATIONS PLEASANTNESSES PLESIOSAURIANS PLURALISATIONS POLYSACCHAROSE POSTAPOCALYPSE POSTCAPITALIST POSTLAPSARIANS POSTMENOPAUSAL PRIVATISATIONS PROCRASTINATES PROPAGABLENESS PROPAGANDISERS PROSOPAGNOSIAS PROSTAGLANDINS PROTOSPATAIRES PSEPHOANALYSES PSEPHOANALYSIS PSEUDAESTHESIA PSYCHASTHENIAS PSYCHOANALYSED PSYCHOANALYSER PSYCHOANALYSES PSYCHOANALYSIS PSYCHOANALYSTS PSYCHOANALYZES QUAESTIONARIES QUARTERMASTERS QUASIPARTICLES RADIALISATIONS RADIORESISTANT RAMPAGEOUSNESS RANDOMISATIONS RATEABLENESSES RATIONALNESSES REACCLIMATISES REACTIONARISMS REACTIONARISTS READABLENESSES REASONABLENESS RECONNAISSANCE REMARKABLENESS REMATERIALISES RENATIONALISES RESTAURANTEURS RETRANSLATIONS REWARDABLENESS RHABDOMANTISTS RITUALISATIONS SACCHARIFEROUS SACCHARIMETERS SACCHARINITIES SACCHARISATION SACCHAROMETERS SACERDOTALISED SACERDOTALISES SACERDOTALISMS SACERDOTALISTS SACERDOTALIZES SACRALISATIONS SACRALIZATIONS SACRAMENTALISM SACRAMENTALIST SACRAMENTARIES SACROSANCTNESS SADOMASOCHISMS SADOMASOCHISTS SALEABLENESSES SALUTARINESSES SALVABLENESSES SANGUINARINESS SANITARIANISMS SANITARINESSES SANITATIONISTS SATISFACTORILY SATURABILITIES SAVEABLENESSES SAXIFRAGACEOUS SCALABLENESSES SCANDALISATION SCANDALMONGERS SCANDALOUSNESS SCAPEGALLOWSES SCAPHOCEPHALUS SCAPULIMANCIES SCAPULOMANCIES SCARIFICATIONS SCENARISATIONS SCENARIZATIONS SCHEMATISATION SCHISMATICALLY SCHOLASTICALLY SCHOLASTICATES SCLEROMALACIAS SEASONABLENESS SEASONALNESSES SECTARIANISING SECULARISATION SEMASIOLOGICAL SEMIAUTOMATICS SEMICARBAZIDES SEMICARBAZONES SEMIPALMATIONS SEMIPARASITISM SENSATIONALISE SENSATIONALISM SENSATIONALIST SENSATIONALIZE SENSUALISATION SENSUALIZATION SEPARABILITIES SEPARATENESSES SEPARATIONISMS SEPARATIONISTS SEPARATIVENESS SEPTUAGENARIES SERIALISATIONS SERIALIZATIONS SERRATIROSTRAL SESQUIPEDALIAN SEXUALISATIONS SEXUALIZATIONS SHADOWCASTINGS SHADOWGRAPHIES SHAMEFACEDNESS SHAREABILITIES SHERARDISATION SIGNALISATIONS SIGNALIZATIONS SIMAROUBACEOUS SKATEBOARDINGS SOCIALISATIONS SOCIALIZATIONS SOMNAMBULANCES SOMNAMBULATORS SOUTHEASTWARDS SPARROWGRASSES SPATIALISATION SPECIALISATION SPERMATOBLASTS SPERMATORRHEAS SPERMATOTHECAS SPHAEROCRYSTAL SPORADICALNESS SQUANDERMANIAS SQUATTOCRACIES STABILISATIONS STABILIZATIONS STADHOLDERATES STAGECOACHINGS STAINABILITIES STALAGMOMETERS STALWARTNESSES STAPHYLOPLASTY STATESMANLIEST STATESMANSHIPS STATIONARINESS STATIONMASTERS STIGMATISATION STOCHASTICALLY STOMATOGASTRIC STRANGULATIONS STRATIGRAPHERS STRATIGRAPHIES STRATIGRAPHIST STRATOVOLCANOS SUBALLOCATIONS SUBAPPEARANCES SUBASSOCIATION SUBMANDIBULARS SUBMAXILLARIES SUBSATURATIONS SUBSTANTIALISE SUBSTANTIALISM SUBSTANTIALIST SUBSTANTIALITY SUBSTANTIALIZE SUBSTANTIATING SUBSTANTIATION SUBSTANTIATIVE SUBSTANTIATORS SUBSTANTIVALLY SUFFRAGANSHIPS SULFACETAMIDES SULFANILAMIDES SULFATHIAZOLES SULPHADIAZINES SUMMARISATIONS SUMMARIZATIONS SUOVETAURILIAS SUPERNATATIONS SUPERSATURATED SUPERSATURATES SUPPLANTATIONS SUPRALAPSARIAN SUPRASEGMENTAL SUSTAINABILITY SYLLABICATIONS SYNAPOSEMATISM SYSTEMATICALLY SYSTEMATICIANS TACHYGRAPHISTS TAMEABLENESSES TANTALISATIONS TARSOMETATARSI TARTARISATIONS TELANGIECTASES TELANGIECTASIS TETRAGONALNESS TETRASYLLABLES THALASSOGRAPHY THANATOLOGISTS THAUMATURGISMS THAUMATURGISTS THAUMATURGUSES THEATRICALISES THEATRICALISMS THEATRICALNESS THEMATISATIONS THERMAESTHESIA THREADBARENESS TRAGICALNESSES TRANSACTINIDES TRANSCALENCIES TRANSCAUCASIAN TRANSCRIPTASES TRANSCUTANEOUS TRANSEXUALISMS TRANSLITERATES TRANSLOCATIONS TRANSMIGRATORS TRANSMISSIONAL TRANSMITTANCES TRANSMUTATIONS TRANSPARENCIES TRANSPARENTISE TRANSPIRATIONS TRANSPLANTINGS TRANSPORTANCES TRANSSEXUALISM TRANSSEXUALITY TRANSVERSALITY TRILATERALISMS TRILATERALISTS TRISACCHARIDES TYRANNICALNESS TYRANNOSAURIDS ULTRAROYALISTS 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 VASOACTIVITIES VEGETARIANISMS VERBALISATIONS VERNACULARISES VERNACULARISMS VERNACULARISTS VERNALISATIONS VILLAGISATIONS VISUALISATIONS VISUALIZATIONS VOCATIONALISMS VOCATIONALISTS VOLCANISATIONS VRAISEMBLANCES VULCANISATIONS VULGARISATIONS WAPPENSHAWINGS WEATHERCASTERS WEATHERGLASSES XIPHIPLASTRALS YACHTSMANSHIPS