There are 895 eleven-letter words containing A, C, I and 2S, https://www.bestwordlist.com/c/a/5/11letterwordswithaciss.htm
ABSCISSIONS ABSCONDINGS ABSTINENCES ACCESSARIES ACCESSARILY ACCESSIONAL
ACCESSIONED ACCESSORIAL ACCESSORIES ACCESSORILY ACCESSORISE ACCESSORIUS
ACCESSORIZE ACCUSATIONS ACCUSATIVES ACESCENCIES ACQUISITORS ACRIDNESSES
ACROBATISMS ACROPOLISES ACTOMYOSINS ACTRESSIEST AECIOSPORES AEROBICISES
AEROBICISTS AEROSTATICS AGNOSTICISM AIRSICKNESS ALCOHOLISES ALCOHOLISMS
ALISMACEOUS AMPHISCIANS ANACHARISES ANACHORISMS ANCIENTNESS ANECDOTISTS
ANESTHETICS ANTHRACOSIS ANTICHRISTS ANTICIVISMS ANTIFASCISM ANTIFASCIST
ANTIRACISMS ANTIRACISTS ANTISEPTICS ANTISOCIALS ANTISPASTIC ANTISTATICS
APOLAUSTICS ARCHAICISMS ARCHBISHOPS ARCHIPLASMS ARCHONSHIPS ARCHPRIESTS
ARCUBALISTS ARISTOCRATS ARSMETRICKS ASCENSIONAL ASCETICISMS ASCITITIOUS
ASCLEPIASES ASCRIPTIONS ASEPTICISED ASEPTICISES ASEPTICISMS ASEPTICIZES
ASSISTANCES ASSOCIATING ASSOCIATION ASSOCIATIVE ASSOCIATORS ASSOCIATORY
ASTATICISMS ASTIGMATICS ASTRICTIONS ASTUCIOUSLY ATELECTASIS ATTOPHYSICS
AUTARCHISTS AUTOSCOPIES BACKFISCHES BACKSHISHED BACKSHISHES BACKSLIDERS
BACKSTORIES BACTERIOSES BACTERIOSIS BAITCASTERS BARACHOISES BERDACHISMS
BIENSEANCES BIOPLASTICS BLACKFISHES BLACKSHIRTS BLACKSMITHS BLASTODISCS
BREADSTICKS CACOMISTLES CADDISFLIES CADDISHNESS CADDISWORMS CAFFEINISMS
CALCSINTERS CALLIPASHES CALLOSITIES CALOTYPISTS CAMBISTRIES CAMORRISTAS
CAMPINESSES CANDIDIASES CANDIDIASIS CANISTERISE CANNINESSES CANTHITISES
CANTINESSES CANVASSINGS CAPITALISES CAPITALISMS CAPITALISTS CAPSULISING
CAPTIONLESS CARAMELISES CARBONISERS CARESSINGLY CARESSIVELY CARIOSITIES
CARIOUSNESS CARNASSIALS CARNOSITIES CARSHARINGS CARSICKNESS CARTOONISTS
CARYOPSIDES CASCARILLAS CASEINOGENS CASHIERINGS CASINGHEADS CASSEROLING
CASSIOPEIUM CASSITERITE CASSOWARIES CASTIGATORS CASTRATIONS CASUALISING
CASUISTICAL CASUISTRIES CATABOLISES CATABOLISMS CATACHRESIS CATALEPSIES
CATALOGISES CATAPLASIAS CATECHISERS CATEGORISES CATEGORISTS CATSKINNERS
CATTINESSES CATTISHNESS CAUCUSSINGS CAUSALITIES CAUSTICNESS CAVENDISHES
CEDARSTRIPS CENESTHESIA CENTESIMALS CENTRALISES CENTRALISMS CENTRALISTS
CERAMICISTS CERATITISES CERATOPSIDS CESTOIDEANS CHAMPIONESS CHANNELISES
CHAOLOGISTS CHAPRASSIES CHAPTALISES CHARINESSES CHASTISABLE CHAUVINISMS
CHAUVINISTS CHEVESAILES CHEVISANCES CHIMAERISMS CHLORALISMS CHOIRSTALLS
CHOLESTASIS CHREMATISTS CHROMATISTS CHRYSALIDES CHRYSALISES CHUPRASSIES
CHURNALISMS CICATRISERS CINEMATISES CIRCASSIANS CLACKDISHES CLASSICALLY
CLASSICISED CLASSICISES CLASSICISMS CLASSICISTS CLASSICIZED CLASSICIZES
CLASSIFIEDS CLASSIFIERS CLASSIFYING CLAVIERISTS CLEANLINESS CLIANTHUSES
CLOACITISES CNIDOBLASTS COASSISTING COESSENTIAL COGNISANCES COMICALNESS
COMITATUSES COMMISSAIRE COMMISSURAL COMPARISONS COMPASSINGS COMPASSIONS
CONACREISMS CONCLAVISMS CONCLAVISTS CONFISCATES CONSOCIATES CONSPIRANTS
CONSTANCIES CONSTATIVES CONSTIPATES CONSTRAINTS CONTRABASSI CORDIALISES
CORDIALNESS CORYDALISES COSCENARIST COSTEANINGS COWARDSHIPS CRAMPFISHES
CRANESBILLS CRASSITUDES CRAZINESSES CRISPATIONS CRISPATURES CRISPBREADS
CROSSCLAIMS CRUISEWEARS CRUSTATIONS CRYSTALISED CRYSTALISER CRYSTALISES
CRYSTALIZES CRYSTALLISE CUBICALNESS CUIRASSIERS CURATESHIPS CURTAINLESS
CUSTARDIEST CUSTOMARIES CUSTUMARIES CYNICALNESS CYSTEAMINES CYSTINURIAS
CYTOSTATICS DEACCESSION DEACONSHIPS DECALOGISTS DECASUALISE DECIMALISES
DECIMALISMS DECIMALISTS DECREASINGS DECUSSATING DECUSSATION DELOCALISES
DESACRALISE DESICCATORS DESISTANCES DEVOCALISES DIACAUSTICS DIACOUSTICS
DIACTINISMS DIAGNOSTICS DICASTERIES DINOCERASES DISACCUSTOM DISADVANCES
DISAVAUNCES DISAVOUCHES DISBRANCHES DISCHARGEES DISCHARGERS DISCLAIMERS
DISCLIMAXES DISCLOSABLE DISCOURAGES DISCULPATES DISCUSSABLE DISCUSSANTS
DISENCHAINS DISENCHANTS DISGRACIOUS DISPATCHERS DISSOCIABLE DISSOCIABLY
DISSOCIATED DISSOCIATES DISSONANCES DISSYLLABIC DISTRACTERS DISTRACTORS
DYNAMICISTS DYNASTICISM DYSCRASITES DYSGRAPHICS DYSTHYMIACS ECBLASTESIS
ECCLESIASTS ECSTASISING ECSTASIZING EICOSANOIDS EKISTICIANS ELASTICATES
ELASTICISED ELASTICISES ELASTICIZES ELASTICNESS EMANCIPISTS ENCANTHISES
EPISCOPANTS EPISCOPATES EPISPASTICS EREMACAUSIS ERRATICISMS ESCADRILLES
ESCALATIONS ESCALLONIAS ESCHAROTICS ESEMPLASTIC ESTANCIEROS ETHICALNESS
EVISCERATES EXSICCATORS FACSIMILIST FACTIONISTS FACTORSHIPS FACTUALISMS
FACTUALISTS FANATICISES FANATICISMS FANCINESSES FASCIATIONS FASCIITISES
FASCINATORS FATISCENCES FINICALNESS FLACCIDNESS FRANCHISEES FRANCHISERS
FRANCHISORS FRANTICNESS GLACIALISTS GLUCOSIDASE GLUCOSURIAS GLYCOSIDASE
GLYCOSURIAS GRACILENESS GRAPHICNESS GRECIANISES GYROSTATICS HACKNEYISMS
HACKTIVISMS HACKTIVISTS HAGIOSCOPES HARUSPICIES HASSOCKIEST HEMOSTATICS
HEPTASTICHS HERESIARCHS HESITANCIES HIPPOCRASES HISPANICISE HISPANICISM
HOPSACKINGS HYPERACUSIS ICONOCLASMS ICONOCLASTS ICONOSTASES ICONOSTASIS
ICOSANDROUS IDOLOCLASTS IMPUISSANCE INCANDESCES INCASEMENTS INCESSANTLY
INCRASSATED INCRASSATES INCREASINGS INCRUSTANTS INEXACTNESS INOSCULATES
INSECTARIES INSURANCERS INTERCASTES INTERSPACES INTESTACIES ISAPOSTOLIC
ISOCHEIMALS ISOCYANATES ISOCYANIDES ISODYNAMICS ISOPACHYTES JINRICKSHAS
JOUISSANCES KICKSHAWSES KILOPARSECS KILOPASCALS LACONICISMS LACTOSURIAS
LAMBDACISMS LANDSCAPIST LEMNISCATES LEXICALISES LINECASTERS LITHOCLASTS
LOGICALNESS LUCIFERASES LYRICALNESS MACADAMISES MACHINELESS MACINTOSHES
MACROFOSSIL MACROPRISMS MANICURISTS MANOSCOPIES MANSCAPINGS MANUSCRIPTS
MARASCHINOS MARCHIONESS MARSHALCIES MASCULINISE MASCULINIST MASOCHISTIC
MASTICATORS MATCHSTICKS MECHANISERS MEDIASCAPES MEDICALISES MEDICASTERS
MESOBLASTIC MESOCRANIES MESOGASTRIC METACHROSIS METAPHYSICS MICROSCALES
MICROSTATES MIMOSACEOUS MISBALANCES MISCAPTIONS MISCATALOGS MISCHANNELS
MISCHANTERS MISCHMETALS MISCLASSIFY MISCLASSING MISCREANCES MISCREATORS
MISEDUCATES MISFEASANCE MISPACKAGES MOBCASTINGS MONARCHISES MONARCHISMS
MONARCHISTS MONASTICISM MOSAICKINGS MOUSTACHIOS MULTIACCESS MUSCARDINES
MUSICALISED MUSICALISES MUSICALIZES MUSICALNESS MUSICIANERS MYASTHENICS
NANOPHYSICS NARCISSISMS NARCISSISTS NARCISSUSES NASOGASTRIC NECESSAIRES
NECESSARIAN NECESSARIES NECESSARILY NECESSITATE NEWSCASTING NICROSILALS
NIGHTSCAPES NONASCETICS NONELASTICS NONMUSICALS NONPLASTICS NONSENSICAL
NOWCASTINGS NUCLEARISES NUMISMATICS OBSTINACIES OCCASIONERS OLIGOCLASES
OPSOMANIACS ORCHARDISTS ORGANICISMS ORGANICISTS OSCILLATORS OSCITANCIES
OSCITATIONS OSCULATIONS OSTEOCLASIS OSTRACISERS OSTRACISING OSTRACIZERS
OUTCLASSING PACIFICISMS PACIFICISTS PALACSINTAS PANCOSMISMS PANCRATISTS
PANDECTISTS PANPSYCHISM PANPSYCHIST PARACASEINS PARISCHANES PASSACAGLIA
PASTICHEURS PATAPHYSICS PAUNCHINESS PENTASTICHS PERISARCOUS PERSICARIAS
PHALLICISMS PHALLICISTS PHANTASTICS PHARMACISTS PHYSIATRICS PHYSICALISM
PHYSICALIST PHYSIOCRATS PICARESQUES PILLOWCASES PISCATRIXES PISCIFAUNAS
PLASTICENES PLASTICINES PLASTICISED PLASTICISER PLASTICISES PLASTICIZES
PLICATENESS PODCASTINGS POLYMASTICS POSTCLASSIC PRACTISANTS PREACHINESS
PREFASCISTS PROSAICISMS PROSAICNESS PSEUDOACIDS PSITTACINES PSITTACOSES
PSITTACOSIS PSYCHIATERS PUISSAUNCES PURCHASINGS PUSCHKINIAS QUADRISECTS
RADICALISES RADICALISMS RADICALNESS RADIOSCOPES RANSACKINGS RASCALITIES
RASCALLIEST RASCALLIONS RAUNCHINESS REACCESSION REASCENSION RECANALISES
RECESSIONAL RECITALISTS RECUSANCIES RECUSATIONS REICHSMARKS REINCREASES
RENAISSANCE REQUIESCATS RESEARCHIST RESISTANCES RESOCIALISE RESUSCITANT
RESUSCITATE REVANCHISMS REVANCHISTS RHACHITISES RICEGRASSES RICKETTSIAS
RIVERSCAPES RUSTICATORS SABBATICALS SACAHUISTAS SACAHUISTES SACCHARIDES
SACCHARINES SACCHARISED SACCHARISES SACCHARIZES SACCHAROIDS SACHEMSHIPS
SACRALISING SACRALITIES SACRIFICERS SACRILEGIST SACROILIACS SAGACIOUSLY
SALACIOUSLY SALICACEOUS SALICIONALS SALICORNIAS SALICYLATES SALICYLISMS
SANCTIFIERS SANCTIONERS SANCTITUDES SANCTUARIES SANCTUARISE SARCOCYSTIS
SARCOIDOSES SARCOIDOSIS SARCOLOGIES SARCOPENIAS SARDONICISM SARRACENIAS
SATISFICERS SATISFICING SAUCINESSES SAURISCHIAN SAUSSURITIC SCALDFISHES
SCALINESSES SCALLOPINGS SCALLOPINIS SCALOPPINES SCAMPERINGS SCANDALISED
SCANDALISER SCANDALISES SCANDALIZES SCAPIGEROUS SCAPULARIES SCARABAEIDS
SCARABAEIST SCARINESSES SCARLATINAS SCATOLOGIES SCATOLOGIST SCATTERIEST
SCATTERINGS SCAVENGINGS SCENARISING SCHALSTEINS SCHECHITAHS SCHEMATISED
SCHEMATISES SCHEMATISMS SCHEMATISTS SCHEMATIZES SCHISMATICS SCHISMATISE
SCHISMATIZE SCHIZANTHUS SCHIZOCARPS SCHLIMAZELS SCHMALZIEST SCHOLARSHIP
SCHOLASTICS SCHOLIASTIC SCHOOLMAIDS SCIAMACHIES SCINTIGRAMS SCINTISCANS
SCIOMACHIES SCIOMANCERS SCIOMANCIES SCISSORTAIL SCORIACEOUS SCORPAENIDS
SCOTODINIAS SCRABBLIEST SCRABBLINGS SCRAGGINESS SCRAGGLIEST SCRAMBLINGS
SCRAPPINESS SCRATCHIEST SCRATCHINGS SCRAWNINESS SCRIBACIOUS SCRIMMAGERS
SCRIMSHANDY SCRIMSHANKS SCRIMSHAWED SCYPHISTOMA SEANNACHIES SEASICKNESS
SECESSIONAL SECONDARIES SECRETAIRES SECRETARIES SECULARISED SECULARISER
SECULARISES SECULARISMS SECULARISTS SECULARIZES SEISMICALLY SEMANTICIST
SEMICLASSIC SEPTICEMIAS SEQUACITIES SERGEANCIES SERJEANCIES SHAKUHACHIS
SHAMANISTIC SHANKPIECES SHAUCHLIEST SHOPAHOLICS SHRINKPACKS SIBILANCIES
SIEGECRAFTS SILVERBACKS SIMULACRUMS SIMULCASTED SINARCHISMS SINARCHISTS
SKIAMACHIES SKIASCOPIES SKYJACKINGS SKYSCRAPING SLACKENINGS SLACKTIVISM
SLACKTIVIST SLACTIVISMS SLACTIVISTS SLIMNASTICS SLUICEGATES SMITHCRAFTS
SOCIALISERS SOCIALISING SOCIALISTIC SOCIALITIES SOCIALIZERS SOCIOSEXUAL
SOLICITANTS SONICATIONS SOPHISTICAL SPACINESSES SPASMATICAL SPASMODICAL
SPASMOLYTIC SPASTICALLY SPECIALISED SPECIALISER SPECIALISES SPECIALISMS
SPECIALISTS SPECIALIZES SPECIALNESS SPECIALTIES SPECIATIONS SPECULATIST
SPERMACETIS SPHRAGISTIC SPIFLICATES SPINACHIEST SPINCASTERS SPRAUNCIEST
SQUINANCIES SQUIREARCHS STAGNANCIES STAIRCASING STALACTITES STARCHINESS
STATICKIEST STATISTICAL STAUNCHINGS STAYCATIONS STIACCIATOS STICHARIONS
STICKYBEAKS STOICALNESS STOMACHIEST STRAICHTEST SUBACIDNESS SUBAGENCIES
SUBARTICLES SUBCABINETS SUBCARRIERS SUBCAVITIES SUBCLASSIFY SUBCLASSING
SUBCLAVIANS SUBCLIMAXES SUBDIALECTS SUBMATRICES SUBSOCIALLY SUBVOCALISE
SUFFIGANCES SUFFISANCES SULCALISING SUPPLIANCES SUPPLICANTS SUPPLICATES
SUPREMACIES SUPREMACISM SUPREMACIST SURFCASTING SURROGACIES SURVIVANCES
SUSCITATING SUSCITATION SUSPICIONAL SWITCHBACKS SWITCHGEARS SWITCHGRASS
SWITCHYARDS SYMPOSIARCH SYNDICALISM SYNDICALIST SYNDICATORS SYSSARCOSIS
SYSSARCOTIC SYSTEMATICS TACITNESSES TACKINESSES TAPERSTICKS TAPESCRIPTS
TEICHOPSIAS TESTATRICES TETRASTICHS THALASSEMIC THEOCRASIES TICKLEASSES
TOVARISCHES TRACASSERIE TRACHINUSES TRACHITISES TRAFFICLESS TRANSCRIBES
TRANSCRIPTS TRANSGENICS TRANSIENCES TRANSVESTIC TREACLINESS TSAREVICHES
TSESAREVICH TSESAREWICH TYPICALNESS ULTRABASICS ULTRASONICS UNCANNINESS
UNCANONISES UNCHASTISED UNCLASSICAL UNCLASSIEST UNISONANCES UNSOCIALISM
USUCAPIENTS USUCAPTIONS VASCULARISE VASECTOMIES VASECTOMISE VASOSPASTIC
VESICATIONS VESICULATES VICTUALLESS VISCACHERAS VIVACISSIMO VOCABULISTS
VODCASTINGS VULCANISERS WACKINESSES WAISTCLOTHS WAPINSCHAWS WEBCASTINGS
XEROCHASIES