There are 948 seven-letter words containing A, R, S and T, https://www.bestwordlist.com/c/a/4/7letterwordswitharst.htm ABATERS ABATORS ABITURS ABORTUS ABREAST ABRUPTS ACATERS ACCURST ACTRESS ACTURES ADDREST ADRATES ADVERTS AERATES AERIEST AEROSAT AETHERS AFFRETS AFREETS AGISTER AGISTOR AGRASTE AIGRETS AIRIEST AIRPOST AIRSHOT AIRSTOP ALASTOR ALBERTS AMEARST AMORETS AMORIST AMRITAS AMTRACS AMTRAKS ANESTRA ANESTRI ANTARAS ANTHERS ANTHROS ANTIARS ANTLERS ANTRUMS ANTSIER AORISTS APPORTS ARBLAST ARBUTES ARBUTUS ARCHEST ARCTICS ARGENTS ARIDEST ARISTAE ARISTAS ARISTOS ARKITES ARMLETS ARMPITS ARMREST AROINTS AROYNTS ARPENTS ARRESTS ARSIEST ARTIEST ARTIGIS ARTISAN ARTISTE ARTISTS ARTLESS ARTSIER ARTSIES ARTSMAN ARTSMEN ASHTRAY ASPORTS ASPROUT ASSARTS ASSERTS ASSORTS ASTARTS ASTERIA ASTERID ASTERTS ASTHORE ASTRALS ASTRAND ASTRICT ASTRIDE ASTROID ASTUTER ASTYLAR ATHIRST ATONERS ATRESIA ATRESIC ATRIUMS ATTIRES ATTORNS ATTRAPS ATTRIST ATTRITS AUNTERS AURATES AURISTS AUSTERE AUSTRAL AUTEURS AUTHORS AVATARS AWAREST BAITERS BANTERS BARBETS BARBOTS BARBUTS BARGEST BARISTA BARITES BARNETS BARRATS BARRETS BARTERS BARTONS BARTSIA BARYTAS BARYTES BASTARD BASTERS BATARDS BATHERS BATLERS BATTERS BAXTERS BEATERS BERATES BERTHAS BESTARS BETRAYS BLASTER BOASTER BOATERS BOGARTS BORATES BORSTAL BRAATAS BRASSET BRAVEST BRAWEST BREASTS BREATHS BRISANT BRITSKA BROASTS BROTHAS BURSATE BUSTARD CABRITS CANTARS CANTERS CANTORS CAPTORS CARACTS CARATES CARITAS CARLOTS CARNETS CARPETS CARRATS CARROTS CARTELS CARTERS CARTONS CASTERS CASTORS CASTORY CASTRAL CAUTERS CAVORTS CERATES CHARETS CHARTAS CHASTER CITRALS CLARETS COASTER COATERS COMARTS CONTRAS COSTARD COSTARS COTTARS CRATERS CRATONS CRATURS CRAVATS CRAYEST CREATES CRESTAL CRISTAE CROTALS CRUSTAE CRUSTAL CRUSTAS CRYSTAL CUATROS CURATES CURTALS CUSTARD CZARIST DABSTER DAFTARS DARKEST DARNEST DARTERS DARTLES DARTRES DASTARD DATURAS DAYSTAR DEAREST DEARTHS DEPARTS DERATES DIARIST DIASTER DISPART DISRATE DOATERS DOTARDS DRAPETS DRASTIC DRAUNTS DURANTS DURMAST DUSTRAG EARNEST EARSHOT EASTERN EASTERS ECARTES ELATERS EMPARTS ENDARTS ENTRAPS EPATERS ERGATES ERRANTS ERRATAS ESPARTO ESTRADE ESTRAYS ESTREAT ESTRUAL ESTUARY FACTORS FAIREST FAITORS FALTERS FARMOST FASTERS FATHERS FAUREST FAUTORS FEASTER FOOTRAS FORCATS FORMATS FOUTRAS FRACTUS FRATERS FRETSAW GAGSTER GAITERS GARGETS GARNETS GAROTES GARRETS GARROTS GARTERS GASTERS GASTRAL GASTREA GASTRIC GASTRIN GATHERS GRAITHS GRATERS GRATINS GRAVEST GRAYEST GUITARS GYRATES GYTRASH HAFTERS HAIRSTS HALTERS HAMSTER HARDEST HARDSET HARLOTS HARMOST HAROSET HARPIST HARSLET HARTALS HARTENS HARVEST HASTIER HATREDS HATTERS HEARTHS HEATERS IMARETS IMBRAST IMPARTS INDARTS INSTARS IRATEST IRISATE JUMARTS JURANTS KANTARS KARAITS KARATES KARITES KARSTIC KARTERS KASHRUT KATSURA KHURTAS KIRTANS KOTARES KRATERS LABRETS LAMSTER LARGEST LARIATS LASTERS LATHERS LATRIAS LATRONS LATTERS LIATRIS LUSTRAL MAESTRI MAESTRO MAFTIRS MAISTER MAISTRY MANTRAS MARKETS MARMOTS MARTELS MARTENS MARTINS MARTYRS MASTERS MASTERY MASTIER MATRASS MATRICS MATRONS MATROSS MATSURI MATTERS MATURES MAYSTER MERCATS MISPART MISRATE MISTRAL MORTALS MORTARS MUSHRAT MUSKRAT MUSTARD NARCIST NASTIER NATRONS NATTERS NATURES NEAREST NECTARS NONARTS NUTBARS NUTRIAS OARIEST OESTRAL OLESTRA OMERTAS ORALIST ORATORS ORBITAS ORCHATS ORGEATS ORGIAST OSETRAS OSSETRA OSTIARY OSTMARK OSTRACA OSTRAKA OTARIES OUTBARS OUTSOAR OUTWARS OVATORS OXCARTS PAIREST PALTERS PANTERS PARENTS PARGETS PAROTIS PARROTS PARTANS PARTERS PARTIES PARTONS PASTERN PASTERS PASTIER PASTORS PASTURE PATROLS PATRONS PATTERS PATZERS PERSALT PERSANT PETARAS PETARDS PIARIST PIASTER PIASTRE PIRATES PITARAS PLASTER PLATERS PORTALS POSTWAR PRATERS PRATIES PREACTS PRECAST PROTEAS PSALTER PSALTRY QINTARS QUAREST QUARTES QUARTOS QUATRES RABATOS RABBETS RABBITS RACHETS RACIEST RACISTS RACKETS RADDEST RADGEST RAFTERS RAGOUTS RAGTAGS RAGTOPS RAIYATS RAMCATS RAMJETS RAMSTAM RAMTILS RANKEST RANKIST RANTERS RAPISTS RAPTORS RASHEST RASTERS RASTRUM RATBAGS RATCHES RATEENS RATFISH RATHEST RATINES RATINGS RATIONS RATITES RATLINS RATOONS RATTANS RATTENS RATTERS RATTISH RATTLES RATTONS RAVIEST RAYLETS REALEST REALIST REASTED REBAITS REBATES REBATOS RECANTS RECASTS RECOATS REDACTS REDATES REHEATS RELATES REMATES RENTALS REPASTS REPEATS RESEATS RESIANT RESLATE RESTACK RESTAFF RESTAGE RESTAMP RESTART RESTATE RETACKS RETAILS RETAINS RETAKES RETAMAS RETAPES RETARDS RETASTE RETAXES RETEAMS RETEARS RETINAS RETSINA RIALTOS RISTRAS RITARDS RITUALS ROASTED ROASTER ROASTIE ROBATAS ROBUSTA ROSEATE ROSTRAL ROTATES ROTTANS ROTULAS ROUSANT RUBATOS RUGRATS SACRIST SAETERS SAIREST SAKERET SALTERN SALTERS SALTERY SALTIER SALTIRE SALUTER SANTERA SANTERO SANTIRS SANTOOR SANTOUR SANTURS SARMENT SARSNET SARTORS SASTRAS SATARAS SATIRES SATIRIC SATORIS SATRAPS SATRAPY SATYRAL SATYRAS SATYRES SATYRIC SATYRID SAUNTER SAUTOIR SCANTER SCARLET SCARTED SCARTHS SCATTER SCRATCH SCROTAL SEAGIRT SEAPORT SEARATS SEAREST SEATERS SECRETA SECTARY SEDATER SEMITAR SENATOR SERIATE SERRATE SERRATI SERVANT SHAFTER SHARIAT SHASTER SHASTRA SHATTER SHERIAT SHORTIA SIMITAR SITTARS SKARTHS SKATERS SLANTER SLARTED SLATERS SLATHER SLATIER SLATTER SLIOTAR SMARTED SMARTEN SMARTER SMARTIE SMARTLY SMATTER SNOTRAG SORBATE SORTALS SOUTARS SPAREST SPARTAN SPARTHE SPARTHS SPATTER SPECTRA SPIRANT SPRAINT STABBER STABLER STACKER STAFFER STAGERS STAGERY STAGGER STAGIER STAIDER STAINER STAIRED STAKERS STALKER STAMMER STAMPER STANDER STAPLER STARCHY STARDOM STARERS STARETS STARETZ STARING STARKED STARKEN STARKER STARKLY STARLET STARLIT STARNED STARNIE STARRED STARTED STARTER STARTLE STARTLY STARTSY STARTUP STARVED STARVER STARVES STATERS STATORS STATURE STAYERS STAYRES STEALER STEAMER STEARED STEARES STEARIC STEARIN STELLAR STERANE STERNAL STEWARD STIRRAH STIRRAS STORAGE STRAFED STRAFER STRAFES STRAFFS STRAIKS STRAINS STRAINT STRAITS STRAKED STRAKES STRAMPS STRANDS STRANGE STRAPPY STRATAL STRATAS STRATHS STRATUM STRATUS STRAWED STRAWEN STRAYED STRAYER STRAYVE STREAKS STREAKY STREAMS STREAMY STRETTA STRIATA STRIATE STRIGAE STROAMS STROMAL STRUMAE STRUMAS SUBPART SUMATRA SUNSTAR SUNTRAP SURBATE SURCOAT SUTURAL SWARTHS SWARTHY SWATHER SWATTER SWEATER SYMITAR TABARDS TABERDS TABOURS TABRETS TACKERS TAGGERS TAGRAGS TAILERS TAILORS TAIVERS TALKERS TAMARAS TAMARIS TAMBERS TAMBURS TAMMARS TAMPERS TANKERS TANNERS TANRECS TANTRAS TAPPERS TAPSTER TAPSTRY TARAMAS TARANDS TARBOYS TARBUSH TARCELS TARDIES TARGETS TARIFFS TARINGS TARMACS TARNISH TARPANS TARPONS TARRIES TARROWS TARSALS TARSEAL TARSELS TARSIAS TARSIER TARTANS TARTARS TARTEST TARTISH TARZANS TASERED TASKBAR TASKERS TASTERS TASTIER TATLERS TATTERS TAVERNS TEAMERS TEARERS TEARGAS TEASERS TELLARS TEPHRAS TERBIAS TERTIAS TESSERA TETRADS TEWARTS THAIRMS THALERS THAWERS THENARS THIRAMS THORIAS THRALLS THRANGS THRASHY THRAVES THREADS THREAPS THREATS THRIMSA THROATS THRYMSA THWARTS TIRADES TIRAGES TIRASSE TOASTER TOERAGS TOOARTS TORANAS TORSADE TORULAS TOTARAS TOWARDS TOWBARS TRACERS TRACTUS TRADERS TRADIES TRAGICS TRAIPSE TRAMELS TRANCES TRANSES TRANSIT TRANSOM TRAPANS TRAPSED TRAPSES TRASHED TRASHER TRASHES TRASSES TRAUMAS TRAVELS TRAVOIS TRAYNES TREASON TREPANS TRIACTS TRIAGES TRIBALS TRICARS TRISHAW TRISULA TROADES TROCARS TROIKAS TROJANS TRUANTS TRYSAIL TSARDOM TSARINA TSARISM TSARIST TUGHRAS TULWARS TUNDRAS TURACOS TURBANS TURISTA TUSHKAR TUSKARS TUSSARS TWISCAR TYRANTS TZARISM TZARIST UNCARTS UNSMART UNSTRAP UPBRAST UPDARTS UPRATES UPSTAIR UPSTARE UPSTART UPTEARS URTICAS VARLETS VARSITY VASTIER VATTERS VERITAS VERSANT VESTRAL VIATORS WABSTER WAFTERS WAISTER WAITERS WANTERS WARBOTS WARIEST WARMEST WARMIST WARMTHS WARSTLE WASTERS WASTERY WASTREL WASTRIE WRAITHS WRASTED WRASTLE WREATHS WROATHS YANTRAS YAOURTS YAPSTER YATTERS YTTRIAS