There are 555 eleven-letter words containing 2A, 2S and T, https://www.bestwordlist.com/c/a/5/11letterwordswithaasst.htm ABSTRACTERS ABSTRACTEST ABSTRACTORS ACCUSATIONS ACCUSATIVES ACROBATISMS ADAPTEDNESS ADVISORATES AEROSTATICS AESTIVATORS AFTERSHAFTS AFTERSHAVES AFTERSWARMS AFTERTASTES AGROSTEMMAS AILANTHUSES ALABLASTERS ALBATROSSES ALGEBRAISTS ALLANTOISES ALTOSTRATUS AMATEURISMS AMATIVENESS AMELOBLASTS AMIANTHUSES AMPHIASTERS AMYLOPLASTS ANABAPTISES ANABAPTISMS ANABAPTISTS ANAESTHESES ANAESTHESIA ANAESTHESIS ANAPLASTIES ANASTIGMATS ANASTOMOSED ANASTOMOSES ANASTOMOSIS ANASTROPHES ANATOMISERS ANDALUSITES ANESTHESIAS ANIMATENESS ANTAGONISES ANTAGONISMS ANTAGONISTS ANTHRACOSES ANTHRACOSIS ANTIFASCISM ANTIFASCIST ANTIMASQUES ANTIPHRASES ANTIPHRASIS ANTIRACISMS ANTIRACISTS ANTISEXUALS ANTISOCIALS ANTISPASTIC ANTISTATICS ANTISTATIST APARTNESSES APATOSAURUS APLANATISMS APOLAUSTICS APOSTATISED APOSTATISES APOSTATIZES APOSTOLATES APPARATUSES AQUAFITNESS ARAEOSTYLES ARBALESTERS ARBALISTERS ARCUBALISTS ARISTOCRATS ARTISANSHIP ASAFOETIDAS ASPHALTITES ASPHYXIANTS ASPHYXIATES ASPIDISTRAS ASPIRATIONS ASSAFETIDAS ASSAFOETIDA ASSAILMENTS ASSASSINATE ASSENTATION ASSENTATORS ASSEVERATED ASSEVERATES ASSIBILATED ASSIBILATES ASSIGNATION ASSIMILATED ASSIMILATES ASSIMILATOR ASSISTANCES ASSOCIATING ASSOCIATION ASSOCIATIVE ASSOCIATORS ASSOCIATORY ASSORTATIVE ASSUAGEMENT ASSUBJUGATE ASTATICISMS ASTERIDIANS ASTHENOPIAS ASTIGMATICS ASTIGMATISM ASYNARTETES ATELECTASES ATELECTASIS ATTESTATORS AUREATENESS AUSCULTATES AUSTRALITES AUTARCHISTS AUTOLYSATES AUTOMATISES AUTOMATISMS AUTOMATISTS AUTOSTRADAS AVIATRESSES AXIOMATISES BAITCASTERS BALANITISES BALSAMROOTS BALUSTRADES BANDMASTERS BARESTHESIA BARMITSVAHS BASALTWARES BASKETBALLS BASMITZVAHS BASTARDISED BASTARDISES BASTARDISMS BASTARDIZES BASTARDRIES BASTINADOES BASTNAESITE BASTNASITES BATHYSCAPES BATHYSCAPHS BATSMANSHIP BIPARTISANS BLACKSTRAPS BRAHMANISTS BREASTRAILS CAMORRISTAS CAPITALISES CAPITALISMS CAPITALISTS CAPODASTROS CARDCASTLES CASTIGATORS CASTRATIONS CASUISTICAL CATABOLISES CATABOLISMS CATACHRESES CATACHRESIS CATALEPSIES CATALOGISES CATAPLASIAS CAUSALITIES CHAPTALISES CHASTISABLE CHEAPSKATES COALMASTERS COASTGUARDS COCATALYSTS CONSTANTANS CONTRABASSI CONTRABASSO CRANKSHAFTS CRASSAMENTA CRUSTACEANS DASTARDNESS DEASPIRATES DEGREASANTS DESALINATES DESATURATES DESQUAMATES DEVASTATORS DEVASTAVITS DEXTRANASES DIACAUSTICS DIASKEUASTS DIATESSARON DISANIMATES DISPLEASANT DRAMATISERS DYSARTHRIAS ELASTICATES EMASCULATES ESCALATIONS ESCAMOTAGES ESCHEATAGES EUTHANASIAS EUTHANASIES EXASPERATES FACTUALISMS FACTUALISTS FACTUALNESS FANATICISES FANATICISMS FANTASISERS FANTASISING FANTASIZERS FANTASTRIES FASCIATIONS FASCINATORS FASHIONISTA FASTBALLERS FATALNESSES FATSHEDERAS FRUGALISTAS FUSTANELLAS GALACTOSYLS GALLANTNESS GANGMASTERS GASTRALGIAS GASTRULATES GATECRASHES GLACIALISTS GLASNOSTIAN GOATSBEARDS GRADUALISTS GRAMMATISTS GRANDSTANDS GYMNASIASTS HAEMOSTASES HAEMOSTASIA HAEMOSTASIS HAIRSTREAKS HANDBASKETS HARASSMENTS HEADMASTERS HEADSTREAMS HEARTSEASES HEMOSTASIAS HISTAMINASE INCRASSATED INCRASSATES INSALIVATES INSTALLANTS ISOCYANATES ITALIANISES KATABOLISMS LACTOSURIAS LAMESTREAMS LANDSCAPIST LAPIDARISTS LATERALISES LOADMASTERS LOVASTATINS MAGAZINISTS MAGISTRANDS MAGISTRATES MAHATMAISMS MAINSTREAMS MALFEASANTS MARQUESSATE MARQUISATES MARTIALISMS MARTIALISTS MARTIALNESS MASTERCLASS MASTICATORS MASTODYNIAS MASTURBATES MATELLASSES MATRIOSHKAS MATROYSHKAS MATRYOSHKAS MAXIMALISTS MESOGASTRIA METANALYSES METANALYSIS METAPHRASES METAPHRASIS METAPHRASTS METAPLASIAS METASTABLES METASTASISE METASTASIZE METATARSALS MISCATALOGS MYASTHENIAS NANISATIONS NARROWCASTS NASOGASTRIC NATURALISES NATURALISMS NATURALISTS NATURALNESS NAUSEATIONS NOSTOMANIAS PAINSTAKERS PALACSINTAS PALATALISES PANCRATISTS PANESTHESIA PANISLAMIST PANTYWAISTS PARABOLISTS PARADOXISTS PARALOGISTS PARAPHRASTS PARASITISED PARASITISES PARASITISMS PARASITIZES PARASITOIDS PARASITOSES PARASITOSIS PARASTATALS PARESTHESIA PARTIALISES PARTIALISMS PARTIALISTS PARTIALNESS PASQUILANTS PASSAMENTED PASSIONATED PASSIONATES PASSIVATING PASSIVATION PASTEBOARDS PASTORALISM PASTORALIST PATAPHYSICS PATRIALISES PATRIALISMS PEASANTIEST PEASANTRIES PHALANGISTS PHANTASIAST PHANTASIMES PHANTASTICS PHARMACISTS PHOSPHATASE PISSASPHALT PLAGIARISTS PLAINSTANES PLANOBLASTS PLANTSCAPES PLASTILINAS PLEASANTEST POLYMASTIAS PRACTISANTS PRAGMATISES PRAGMATISMS PRAGMATISTS PULSATANCES PULSATILLAS QUADRATUSES QUARTERSAWS RASCALITIES RASCALLIEST RASPATORIES RATABLENESS REESCALATES RESTAURANTS SABBATICALS SABBATISING SABRETACHES SACAHUISTAS SACAHUISTES SACCHARATES SACRALITIES SACROCOSTAL SAGINATIONS SAGITTARIES SAILBOATERS SALBUTAMOLS SALERATUSES SALICYLATES SALIENTIANS SALIVATIONS SALTARELLOS SALTCELLARS SALTIGRADES SALTSHAKERS SALUTATIONS SALVATORIES SAMARSKITES SANATORIUMS SANCTUARIES SANCTUARISE SANDALFOOTS SANDBLASTED SANDBLASTER SANDCASTLES SANITARIANS SANITARISTS SANITARIUMS SANITATIONS SAPOTACEOUS SARCOMATOUS SASQUATCHES SATIRISABLE SATISFIABLE SATURATIONS SATURNALIAS SATYAGRAHAS SATYAGRAHIS SAUERKRAUTS SCARABAEIST SCARLATINAS SCORDATURAS SEAMANLIEST SEASONALITY SENSATIONAL SEPARATIONS SEPARATISMS SEPARATISTS SHADOWCASTS SHAMANISTIC SHEARWATERS SIMVASTATIN SKATEBOARDS SMARAGDITES SMARTYPANTS SOLITARIANS SOLIVAGANTS SOMATOPLASM SPACECRAFTS SPALLATIONS SPANIOLATES SPASMATICAL SPASTICALLY SPATANGOIDS SPATHACEOUS SPATIALISED SPATIALISES SPATIALIZES SPATTERDASH SPHACELATES SQUAMATIONS STABLEMATES STAGECRAFTS STAGNANCIES STAGNATIONS STAIRCASING STALACTITES STALAGMITES STALLMASTER STANDARDISE STAPHYLOMAS STARGAZINGS STARVATIONS STATECRAFTS STATESMANLY STATESWOMAN STATISTICAL STATOBLASTS STAVESACRES STAYCATIONS STEADFASTLY STEARSMATES STEATOPYGAS STERNALGIAS STIACCIATOS STIGMARIANS STRAMASHING STRANDFLATS STRAPPADOES STRATOCRATS STRATOPAUSE STRAVAIGERS STRAWBOARDS STRIPAGRAMS SUBACETATES SUBSCHEMATA SUBSTANDARD SUBSTANTIAL SUBTACKSMAN SUCRALFATES SULPHATASES SUPERALTARS SUPERSTRATA SUPRACOSTAL SURFACTANTS SUSTAINABLE SUSTAINABLY TABOPARESES TABOPARESIS TABULARISES TALLGRASSES TAMABLENESS TANTALISERS TARANTASSES TASKMASTERS TASTEMAKERS TATPURUSHAS TATTERSALLS TAXABLENESS TEARGASSING TESSARAGLOT THALASSEMIA THALASSEMIC THALASSIANS THANATOPSES THANATOPSIS THAUMASITES THIAMINASES THYSANURANS TILLANDSIAS TITANOSAURS TOADGRASSES TOASTMASTER TOPAGNOSIAS TOXOPLASMAS TRACASSERIE TRANSACTORS TRANSEXUALS TRANSFERALS TRANSFERASE TRANSITWAYS TRANSLATORS TRANSPLANTS TRANSPOSALS TRANSSEXUAL TRANSSHAPED TRANSSHAPES TRANSUDATES TRANSVALUES TRANSVERSAL TRAUMATISES TRAUMATISMS TSESAREVNAS TSOTSITAALS ULTRABASICS UNSATURATES UNSTEADFAST VAGRANTNESS VALIANTNESS VANTAGELESS VANTBRASSES VASOSPASTIC WARRANTISES WARRANTLESS WASHATERIAS WASHETERIAS WASTEBASKET WASTEPAPERS WASTEWATERS WATCHSTRAPS WATERSCAPES WHATSISNAME XANTHOPSIAS YARDMASTERS