There are 1012 ten-letter words containing A, I, S and 2T, https://www.bestwordlist.com/c/a/5/10letterwordswithaistt.htm
ABSOLUTIST ABSTENTION ABSTRICTED ABSTRUSITY ACQUITTALS ACQUITTERS
ACTIONISTS ACTIVATORS ACTIVISTIC ACTIVITIES ACTORLIEST ACTUALISTS
ACTUALITES ACTUATIONS AEROSTATIC AESTHETICS AESTIVATED AESTIVATES
AESTIVATOR AFTERTIMES AGISTMENTS AGITATIONS AGNOLOTTIS ALBERTITES
ALITERATES ALTERITIES ALTIMETERS ALTISONANT ALTOSTRATI ALTRUISTIC
ANABAPTIST ANASTIGMAT ANATOMISTS ANCIENTEST ANECDOTIST ANESTHETIC
ANIMATISTS ANNUITANTS ANORTHITES ANTAGONIST ANTIADITIS ANTIASTHMA
ANTICHRIST ANTIELITES ANTIPASTOS ANTIQUATES ANTIQUIEST ANTIRACIST
ANTISEPTIC ANTISEXIST ANTISPASTS ANTISTATIC ANTISTRESS ANTISTRIKE
ANTISTYLES ANTITHEISM ANTITHEIST ANTITHESES ANTITHESIS ANTITOXINS
ANTITRADES ANTITRAGUS ANTITUMORS AORTITISES APOSTATISE APOSTATIZE
AQUATINTAS ARBITRATES ARCHITECTS ARGENTITES ARISTOCRAT ARISTOTLES
ARTHRITICS ARTISTICAL ARTISTRIES ASPHALTITE ASSENTIENT ASSISTANTS
ASTATICISM ASTERIATED ASTHMATICS ASTIGMATIC ASTRANTIAS ASTRICTING
ASTRICTION ASTRICTIVE ASTRINGENT ASTROCYTIC ASTUCITIES ASYMPTOTIC
ASYNTACTIC ATACAMITES ATARACTICS ATHETISING ATMOLOGIST ATONALISTS
ATROCITIES ATTAINDERS ATTENDINGS ATTENTIONS ATTICISING ATTRIBUTES
ATTRISTING ATTRITIONS ATTUITIONS AUSTENITES AUSTENITIC AUSTRALITE
AUTARCHIST AUTARKISTS AUTEURISTS AUTOCUTIES AUTOMATICS AUTOMATISE
AUTOMATISM AUTOMATIST AUTONOMIST AUTOPILOTS AUTOPISTAS AUTOPOINTS
AUTOPSISTS AUTOTHEISM AUTOTHEIST AUTOTIMERS AUTOTOMIES AUTOTOMISE
AUTOTOXINS AUTOTYPIES AUTUMNIEST BABYSITTER BACKSTITCH BAITCASTER
BALLISTITE BAPTISTERY BASSETTING BASTNASITE BATHOLITES BATHOLITHS
BATHYLITES BATHYLITHS BATOLOGIST BATTAILOUS BATTALIONS BATTENINGS
BATTERINGS BATTLESHIP BEASTLIEST BEATITUDES BESTIALITY BETHANKITS
BIATHLETES BIOSTATICS BIROSTRATE BIRTHDATES BIRTHRATES BITEPLATES
BITSTREAMS BRATTINESS BRATTISHED BRATTISHES BRATTLINGS BREATHIEST
BRITTANIAS BRUTALISTS BUSTICATED BUSTICATES CALOTYPIST CAPITALIST
CAPTIVATES CARNOTITES CARROTIEST CARTELISTS CARTOONIST CASTIGATED
CASTIGATES CASTIGATOR CASTRATING CASTRATION CATASTASIS CATATONIAS
CATATONICS CATATONIES CATECHISTS CATEGORIST CATHARTICS CATLINITES
CATOPTRICS CAUSTICITY CENTRALIST CERTAINEST CHAPATTIES CHASTITIES
CHATTINESS CHAVTASTIC CHREMATIST CHROMATIST CHUPATTIES CIGARETTES
CITHARISTS CLINOSTATS COBALTITES COGITATORS COMMITTALS CONSTATING
CONSTATIVE CONSTIPATE CONSTRAINT COPATRIOTS COTTAGIEST COTTAGINGS
CREPITATES CRUSTATION CRYOSTATIC CULTIVATES CURTATIONS CYTOSTATIC
DACTYLISTS DARTITISES DEATHLIEST DEFEATISTS DENITRATES DENTATIONS
DERMATITIS DESTINATED DESTINATES DEVASTAVIT DIASTALTIC DIASTEMATA
DIATOMISTS DIATOMITES DIATRETUMS DIATRIBIST DICTATIONS DICTATRESS
DICTATURES DIETITIANS DIGESTANTS DILATATORS DISATTIRED DISATTIRES
DISATTUNED DISATTUNES DISPUTANTS DISSERTATE DISTASTING DISTILLATE
DISTRACTED DISTRACTER DISTRACTOR DISTRAINTS DISTRAUGHT DISTURBANT
DITTANDERS DOGMATISTS DONATISTIC DRAMATISTS EARTHLIEST ELASTICATE
ELASTICITY ELATERITES ELUTRIATES EMANATISTS EMITTANCES EMPATHISTS
ENDOSTATIN ENIGMATIST ENSTATITES ENTERTAINS ENTHUSIAST ENTREATIES
EPITAPHIST ESTAMINETS ESTHETICAL ESTIMATING ESTIMATION ESTIMATIVE
ESTIMATORS ESTIPULATE ESTIVATING ESTIVATION ESTIVATORS ESTREATING
ETERNALIST EVITATIONS EXPATIATES EXTIRPATES EXTRADITES EXTRICATES
FACTIONIST FACTITIOUS FACTUALIST FAGOTTISTS FANTASISTS FANTASTICO
FANTASTICS FASTIGIATE FATALISTIC FATALITIES FATTENINGS FERTIGATES
FESTINATED FESTINATES FLAGITATES FLATTERIES FLAUNTIEST FLOTATIONS
FOETATIONS FRATCHIEST FUNGISTATS FUSTIANIST FUSTIGATED FUSTIGATES
FUSTIGATOR GADGETIEST GAROTTINGS GASTROLITH GEOSTATICS GERIATRIST
GESTALTISM GESTALTIST GESTATIONS GHASTLIEST GIANTLIEST GITTARONES
GONIATITES GRAFFITIST GRAMMATIST GRANITITES GRATINATES GRATITUDES
GRATUITIES GRATUITOUS GRAVITATES GUESTIMATE GUITARISTS GUSTATIONS
GUTTATIONS GYROSTATIC HABITUATES HACKTIVIST HAEMATITES HATINATORS
HAUGHTIEST HEALTHIEST HELIOSTATS HEMOSTATIC HEPTASTICH HESITANTLY
HESITATERS HESITATING HESITATION HESITATIVE HESITATORS HESITATORY
HETAERISTS HETAIRISTS HISTOBLAST HORTATIONS HUMIDISTAT HYPOSTATIC
ILLUSTRATE IMITATIONS IMMATUREST IMPACTITES IMPETRATES INARTISTIC
INCONSTANT INCRUSTANT INEXISTANT INFATUATES INFECTANTS INFESTANTS
INITIATORS INJECTANTS INPATIENTS INSTALLANT INSTALMENT INSTANTIAL
INSTIGATED INSTIGATES INSTIGATOR INTACTNESS INTEGRANTS INTEGRATES
INTENDANTS INTENSATED INTENSATES INTERCASTE INTERSTAGE INTERSTATE
INTESTATES INTESTINAL INTIMATERS INTONATORS INTRASTATE INTRIGANTS
IRRITATORS ISOGLOTTAL ITERATIONS ITINERANTS ITINERATES JACTATIONS
KARATEISTS KERSANTITE KICKSTARTS KITTIWAKES KLINOSTATS LACTATIONS
LACTIVISTS LANTERNIST LATHERIEST LATINITIES LATRATIONS LATTICINGS
LEVITATORS LITERALIST LITERATORS LITHOCLAST LITIGATORS LITTERBAGS
LOATHLIEST LOVASTATIN LUCTATIONS LUSTRATING LUSTRATION LUSTRATIVE
MACTATIONS MAGGOTIEST MAGISTRATE MAGNETISTS MAGNETITES MAINSTREET
MAISONETTE MANICOTTIS MARTENSITE MARTIALIST MASTICATED MASTICATES
MASTICATOR MASTITIDES MASTITISES MATCHSTICK MATTERIEST MATURITIES
MEDITATORS MENTALISTS MENTATIONS METAETHICS METALLISTS METALSMITH
METASTASIS METASTATIC METATHESIS METRICATES MICROSTATE MICROWATTS
MICTURATES MIGMATITES MILITARIST MILKTOASTS MILLIWATTS MINISTATES
MINISTRANT MISENTREAT MISSALETTE MISSTARTED MISSTATING MISTREATED
MITIGATORS MONETARIST MORTARIEST MOTIVATORS MULTICASTS MULTISTAGE
MULTISTATE MULTITASKS MUSSITATED MUSSITATES MUTILATORS MUTUALISTS
MYOSTATINS NARCOTISTS NASTURTIUM NATALITIES NATIVISTIC NATIVITIES
NATROLITES NATTERIEST NATURALIST NATURISTIC NAUGHTIEST NEGATIVIST
NEGOTIANTS NEGOTIATES NEUTRALIST NICTATIONS NICTITATES NIGHTSTAND
NITRATINES NITRATIONS NONARTISTS NONSTATIVE NOSTALGIST NOVITIATES
NYCTINASTY OBITUARIST OCTASTICHS ODONATISTS OMITTANCES ORIENTATES
OSCITANTLY OSCITATING OSCITATION OUTCASTING OUTFASTING OUTLASTING
OUTSKATING OUTSTARING OUTSTATING OUTSTATION OUTSTAYING OUTSTRAINS
OUTTASKING OUTWASTING PAILLETTES PALAFITTES PALMITATES PALPITATES
PANCRATIST PANDECTIST PANTHEISTS PANTSUITED PANTYWAIST PARROTIEST
PARTIALIST PARTITIONS PARTITIVES PARTITURAS PASTELISTS PASTELLIST
PASTITSIOS PATIENTEST PATRIOTISM PATRISTICS PAUGHTIEST PAUPIETTES
PEDIATRIST PEGMATITES PELTATIONS PENTASTICH PETAURISTS PETTICHAPS
PETTICOATS PHANTASTIC PHOTOTAXIS PISTILLATE PLAINTEXTS PLASTICITY
PLATITUDES PODIATRIST POINSETTIA PORTATIVES POSTATOMIC POSTCOITAL
POSTDATING POSTILLATE POSTIMPACT POSTMATING POTENTIALS POTTINGARS
PRACTISANT PRAGMATIST PRELATISTS PRESTATION PRETASTING PRIVATISTS
PROSTATISM PROTISTANS PSITTACINE PYROSTATIC QUANTITIES QUARTZIEST
QUARTZITES QUITTANCES QUOTATIONS QUOTATIOUS QUOTATIVES RABATTINGS
RABBITIEST RACKETIEST RAPTURISTS RATTENINGS RAVIGOTTES RECITALIST
REDICTATES REESTIMATE REGISTRANT REINSTATED REINSTATES REINSTATOR
REITERATES RELATIVIST REPTATIONS RESISTANTS RESITUATED RESITUATES
RESTARTING RESTATIONS RESTRAINTS RETALIATES RETRANSMIT REVISITANT
RHEOSTATIC RHOTACISTS RIBATTUTAS RICKETTSIA RIJSTTAFEL RITUALISTS
RUCTATIONS RUSTICATED RUSTICATES RUSTICATOR SAGITTALLY SAINTLIEST
SALTATIONS SALUTATION SANCTITIES SANCTITUDE SANITARIST SANITATING
SANITATION SATANITIES SATELLITED SATELLITES SATELLITIC SATIATIONS
SATINETTAS SATINETTES SATURATING SATURATION SATURNISTS SCANTITIES
SCATTERIER SCATTERING SCATTINESS SCATURIENT SCHEMATIST SCRATTLING
SCUTATIONS SENTENTIAE SENTENTIAL SEPARATIST SEPTATIONS SEXPARTITE
SHAGTASTIC SHATTERIER SHATTERING SHEATHIEST SHIRTTAILS SHIRTWAIST
SIDEROSTAT SILTATIONS SITATUNGAS SITUATIONS SITUTUNGAS SLACTIVIST
SLATTERING SMATTERING SMITHCRAFT SNATCHIEST SOLICITANT SOLSTITIAL
SORTATIONS SPAGHETTIS SPASTICITY SPATIALITY SPATTERING SPECTATING
SPECTATRIX SPLATTINGS SPRATTLING SQUATTIEST SQUATTINGS SQUATTLING
STABILATES STACATIONS STAGNATING STAGNATION STAIRFOOTS STAIRLIFTS
STAIRSTEPS STALACTITE STALAGMITE STANDFIRST STANDPOINT STANDSTILL
STARCHIEST STARDRIFTS STARFRUITS STARLIGHTS STAROSTIES STARTINGLY
STARTLIEST STARTLINGS STARVATION STATELIEST STATICALLY STATICKIER
STATIONARY STATIONERS STATIONERY STATIONING STATISTICS STATOLITHS
STATUARIES STATUSIEST STAUROLITE STAYCATION STAYSTITCH STEALTHIER
STEALTHILY STEALTHING STEAMTIGHT STENTORIAN STEPHANITE STERIGMATA
STERILANTS STIACCIATO STICCATOES STIGMATICS STIGMATISE STIGMATISM
STIGMATIST STIGMATIZE STIGMATOSE STILLATORY STIMULANTS STIMULATED
STIMULATER STIMULATES STIMULATOR STIPELLATE STIPULATED STIPULATES
STIPULATOR STIRABOUTS STOCHASTIC STOMATITIC STOMATITIS STRAICHTER
STRAIGHTED STRAIGHTEN STRAIGHTER STRAIGHTLY STRAITENED STRAITNESS
STRAPONTIN STRAPPIEST STRATEGICS STRATEGIES STRATEGISE STRATEGIST
STRATEGIZE STRATIFIED STRATIFIES STRATIFORM STREAKIEST STREAMIEST
STRELITZIA STREPITANT STRIATIONS STRIATURES STRIDULANT STRIDULATE
STRINGHALT STRIPTEASE STROBILATE STRONTIANS STUPRATING STUPRATION
SUBINTRANT SUBMITTALS SUBSTATION SUBTITULAR SUSCITATED SUSCITATES
SUTURATION SWARTHIEST SWATTERING SWEATSHIRT SWEATSUITS SYNTACTICS
SYSTEMATIC TACHYLITES TACKETIEST TACTICIANS TACTILISTS TAFFETIEST
TAFFETISED TAIKONAUTS TAILGATERS TAILLIGHTS TAILSTOCKS TAILWATERS
TALLOWIEST TANISTRIES TANTALISED TANTALISER TANTALISES TANTALISMS
TANTALITES TANTALIZES TANZANITES TAPERSTICK TAPESCRIPT TAPESTRIED
TAPESTRIES TARANTISMS TARANTISTS TARGETINGS TARGETITIS TARNATIONS
TARTANRIES TARTARISED TARTARISES TARTARIZES TASIMETERS TASIMETRIC
TASSELIEST TATTERIEST TATTOOISTS TAXIMETERS TAXONOMIST TEARSTAINS
TEARSTRIPS TELEMATICS TELESMATIC TENACITIES TENANTRIES TENANTSHIP
TENTATIONS TENTATIVES TERMINATES TERTIARIES TESSITURAS TESTATIONS
TESTICULAR TESTUDINAL TETANISING TETRABASIC TETRADITES TETRAPOLIS
TETRASEMIC TETRASTICH TEXTUALISM TEXTUALIST TEXTUARIES THANATISMS
THANATISTS THANATOSIS THATCHIEST THATCHINGS THAUMASITE THAUMATINS
THEISTICAL THEMATISED THEMATISES THEMATIZES THERALITES THERAPISTS
THORNTAILS THRASHIEST THREADIEST THROATIEST THWARTINGS THWARTSHIP
THWARTWISE TIBIOTARSI TIDEWATERS TIGHTASSED TIGHTASSES TIKTAALIKS
TIMESTAMPS TIMETABLES TIMPANISTS TINGUAITES TITANESSES TITANOSAUR
TITILLATES TITIVATORS TITRATIONS TITTIVATES TITTLEBATS TITULARIES
TOASTINESS TOCCATINAS TOMATILLOS TOMATOIEST TONALITIES TOPIARISTS
TORBANITES TOSSICATED TOSTICATED TOTALISERS TOTALISING TOTALISTIC
TOTALITIES TOTALIZERS TOTAQUINES TRACHEITIS TRACKSUITS TRACTRICES
TRADITIONS TRADITORES TRAILERIST TRAITORESS TRAITORISM TRAITOROUS
TRANSCRIPT TRANSIENTS TRANSISTOR TRANSITING TRANSITION TRANSITIVE
TRANSITORY TRANSITWAY TRAPEZISTS TRASHTRIES TRATTORIAS TRAUMATISE
TRAUMATISM TRAVERTINS TRAVESTIED TRAVESTIES TREACLIEST TREMATOIDS
TRIALITIES TRIALLISTS TRIATHLONS TRIBALISTS TRIBULATES TRIBUNATES
TRICOSTATE TRIGAMISTS TRIMESTRAL TRIPARTISM TRIPITAKAS TRIQUETRAS
TRISTEARIN TRISULCATE TRITANOPES TRITICALES TRITURATES TRIVIALIST
TROPOTAXIS TRUANTINGS TRUANTRIES TRUANTSHIP TSAREVITCH TSOTSITAAL
TURBINATES TURRIBANTS TUTELARIES TWADDLIEST TWATTLINGS TYMPANISTS
TYMPANITES TYMPANITIS TYROPITTAS UINTAHITES ULTIMATUMS ULTRAISTIC
UNARTISTIC UNCHASTITY UNHASTIEST UNHATTINGS UNICOSTATE UNISEPTATE
UNSATIATED UNSTRIATED UPSTARTING USTULATING USTULATION VARITYPIST
VASTITUDES VEDUTISTAS VENTIFACTS VENTILATES VIRTUALIST VISITATION
VISITATIVE VISITATORS VITALISTIC VITALITIES VITIATIONS WADSETTING
WAISTBELTS WAISTCLOTH WAISTCOATS WAITLISTED WAITSTAFFS WATCHLISTS
WEALTHIEST WHITEBAITS WHITECOATS WHITETAILS WHITTAWERS WITHSTANDS
WITWANTONS WREATHIEST WRISTWATCH YATTERINGS