There are 660 ten-letter words containing 2A, D and T, https://www.bestwordlist.com/c/a/4/10letterwordswithaadt.htm
ABDICATING ABDICATION ABDICATIVE ABDICATORS ABOMINATED ABSTRACTED
ABUNDANTLY ACADEMISTS ACCIDENTAL ACCLIMATED ACETAMIDES ACETANILID
ACETYLATED ACICULATED ACIDULATED ACIDULATES ACQUAINTED ACTUALISED
ACTUALIZED ACUMINATED ADACTYLOUS ADAMANTEAN ADAMANTINE ADAPTATION
ADAPTATIVE ADAPTIVELY ADAPTIVITY ADAPTOGENS ADDITAMENT ADDITIONAL
ADDLEPATED ADELANTADO ADENOPATHY ADENYLATES ADEQUATELY ADEQUATIVE
ADIABATICS ADIACTINIC ADJACENTLY ADJECTIVAL ADJUDICATE ADJURATION
ADJURATORY ADJUSTABLE ADJUSTABLY ADMIRATION ADMIRATIVE ADMITTABLE
ADMITTANCE ADORATIONS ADSORBATES ADULATIONS ADULTERANT ADULTERATE
ADUMBRATED ADUMBRATES ADVANTAGED ADVANTAGES ADVENTITIA ADVISATORY
ADVISORATE ADVOCATING ADVOCATION ADVOCATIVE ADVOCATORS ADVOCATORY
AESTIVATED AFFIDAVITS AFFILIATED AFFRICATED AFTERDAMPS AFTERGUARD
AFTERWARDS AGGRAVATED AGGREGATED AGITATEDLY ALABANDITE ALLANTOIDS
ALLEVIATED ALMANDITES ALPHABETED ALTERCATED ALTERNATED AMANTADINE
AMENDATORY AMIANTHOID AMMONIATED AMYGDALATE ANABANTIDS ANATOMISED
ANATOMIZED ANDALUSITE ANDANTINOS ANDRADITES ANECDOTAGE ANIMADVERT
ANIMATEDLY ANODONTIAS ANTEDATING ANTEPENDIA ANTHERIDIA ANTHRACOID
ANTIADITIS ANTIDAZZLE ANTIPODALS ANTIPODEAN ANTIQUATED ANTIRADARS
ANTITRADES ANUCLEATED APARTHEIDS APOCOPATED APPENDANTS APPROBATED
AQUATINTED ARBITRAGED ARBITRATED AROMATISED AROMATIZED ARTHRODIAE
ARTHRODIAL ARYTAENOID ASAFETIDAS ASAFOETIDA ASCENDANTS ASPIDISTRA
ASSAFETIDA ASSOCIATED ASTARBOARD ASTERIATED ASTERIDIAN ASTEROIDAL
ATTAINDERS ATTENDANCE ATTENDANCY ATTENDANTS ATTENUATED AUDACITIES
AUDIOTAPED AUDIOTAPES AUDITORIAL AUSPICATED AUTOCLAVED AUTODIALED
AUTODIDACT AUTOLOADED AUTOLOADER AUTOSTRADA AUTOSTRADE AWKWARDEST
BACKDATING BACKDRAFTS BALLADISTS BALUSTRADE BANDMASTER BANDOBASTS
BANDSTANDS BARDOLATER BARDOLATRY BARTIZANED BASTARDIES BASTARDISE
BASTARDISM BASTARDIZE BASTINADED BASTINADES BEADBLASTS BIQUADRATE
BRACHIATED BROADCASTS BROADTAILS CALCULATED CALIBRATED CANCERATED
CANDIDATES CANNULATED CANTHARIDS CAPODASTRO CAPSULATED CAPTIVATED
CARBOLATED CARBONATED CARBURATED CARDCASTLE CARYATIDAL CARYATIDES
CARYATIDIC CASKSTANDS CASTIGATED CATALOGUED CATAPULTED CATHARISED
CATHARIZED CATHEDRALS CATHODALLY CATHODICAL CAUDATIONS CHLAMYDATE
CLARTHEADS COADJACENT COADJUTANT COADUNATED COADUNATES COAGULATED
COARCTATED COASTGUARD COASTLANDS COASTWARDS COATSTANDS COMMANDANT
CONTADINAS CONTRABAND CORADICATE DACOITAGES DALMATIANS DALTONIANS
DAMNATIONS DANDIPRATS DANDYPRATS DANTHONIAS DARNATIONS DARTBOARDS
DASTARDIES DATABASING DATABUSSES DATAGLOVES DATAMATION DAYCATIONS
DEACTIVATE DEADWATERS DEAERATING DEAERATION DEAERATORS DEALATIONS
DEALBATION DEAMINATED DEAMINATES DEASPIRATE DEATHTRAPS DEATHWARDS
DEATHWATCH DEBATEABLE DECANTATED DECANTATES DECAPITATE DECAUDATED
DECAUDATES DECLAIMANT DECLARANTS DECLARATOR DEFAECATED DEFAECATES
DEFAECATOR DEFALCATED DEFALCATES DEFALCATOR DEFAMATION DEFAMATORY
DEFEATABLE DEFLAGRATE DEGREASANT DELAMINATE DEMANDANTS DEMARCATED
DEMARCATES DEMARCATOR DENATURANT DERACINATE DERMATOMAL DESALINATE
DESATURATE DESIDERATA DESQUAMATE DETACHABLE DETACHABLY DETAINABLE
DEVALUATED DEVALUATES DEVASTATED DEVASTATES DEVASTATOR DEVASTAVIT
DEXTRANASE DIABETICAL DIACAUSTIC DIACONATES DIALYSATES DIALYZATES
DIAMAGNETS DIAMANTINE DIASKEUAST DIASTALSES DIASTALSIS DIASTALTIC
DIASTEMATA DIATHERMAL DIATHERMIA DIDACTICAL DIETARIANS DIGLADIATE
DILACERATE DILAPIDATE DILATATION DILATATORS DISANIMATE DISCARNATE
DISPARATES DIVAGATING DIVAGATION DIVARICATE DOGMATICAL DONATARIES
DRAMATICAL DRAMATISED DRAMATISER DRAMATISES DRAMATISTS DRAMATIZED
DRAMATIZER DRAMATIZES DRAMATURGE DRAMATURGS DRAMATURGY DRAUGHTMAN
DRAWPLATES DREAMBOATS DURATIONAL DYNAMITARD DYNASTICAL DYSARTHRIA
EARTHWARDS EASTWARDLY ECARDINATE EDUCATABLE EJACULATED ELABORATED
ERADIATING ERADIATION ERADICANTS ERADICATED ERADICATES ERADICATOR
ESTRAPADES EUPATRIDAE EUTHANASED EUTHANAZED EVAGINATED EVAPORATED
EXCARNATED EXPATIATED EXTRADOTAL EXTRADURAL FABRICATED FANTASISED
FANTASIZED FARMSTEADS FASCINATED FATBRAINED FATHERLAND FATSHEDERA
FLAGITATED FLATBREADS FLATLANDER GALAVANTED GALIVANTED GANGLIATED
GLADIATORS GLADIATORY GOATSBEARD GRADATIONS GRADUALIST GRADUALITY
GRADUATING GRADUATION GRADUATORS GRANDAUNTS GRANDSTAND GRANULATED
GRATINATED GRATULATED GRAVITATED GUARANTEED GUARANTIED HABITUATED
HAGGADISTS HALLSTANDS HANDBASKET HANDCRAFTS HANDFASTED HANDICRAFT
HANDSTAFFS HANDSTAMPS HANDSTANDS HANDSTAVES HARDSTANDS HARIOLATED
HEADMASTER HEADSTALLS HEADSTANDS HEADSTREAM HEADWAITER HEADWATERS
HEAPSTEADS HEARTLANDS HEATHLANDS HEPTAHEDRA IDEATIONAL INADAPTIVE
INADEQUATE INCARNATED INDAGATING INDAGATION INDAGATIVE INDAGATORS
INDAGATORY INFATUATED INTIFADAHS INVALIDATE IRRADIATED IRRADIATES
IRRADIATOR IRRADICATE KADAITCHAS KURDAITCHA LACINIATED LAEVIGATED
LAMELLATED LAMPADISTS LAMPSTANDS LANCINATED LANDAULETS LANDWAITER
LANTHANIDE LANTHANOID LAPIDARIST LAPIDATING LAPIDATION LARDALITES
LATERALLED LATIFUNDIA LAUDATIONS LAUDATIVES LAUNDROMAT LAURDALITE
LEADPLANTS LOADMASTER MACHINATED MAGISTRAND MAINTAINED MALADAPTED
MALADROITS MALTREATED MAMILLATED MANCIPATED MANDUCATED MANDUCATES
MANGULATED MARGINATED MASTHEADED MASTICATED MASTODYNIA MATCHBOARD
MATRICIDAL MEDIASTINA MEGADEATHS METALHEADS MISADAPTED MONTADALES
MONTAGNARD MORTADELLA NEANDERTAL NIDAMENTAL OCTAHEDRAL OCTANDRIAN
ODONTALGIA ODONTOMATA OMMATIDIAL OSTRACODAN PACKTHREAD PADDLEBOAT
PAEDERASTS PAEDERASTY PAEDIATRIC PALMATIFID PALPITATED PALUDAMENT
PANDATIONS PANDURATED PANTRYMAID PAPILLATED PARACHUTED PARADOCTOR
PARADOXIST PARASITOID PARDALOTES PARTIALLED PASSIVATED PASTEBOARD
PATCHBOARD PATRICIDAL PATRONAGED PEDALBOATS PEDANTICAL PENTAHEDRA
PHANTASIED PINTADERAS PITAPATTED PLASTIDIAL PLATTELAND PREADAMITE
PREADAPTED PROCTODAEA PRODROMATA PROPAGATED QUADRANTAL QUADRANTES
QUADRATICS QUADRATING QUADRATRIX QUADRATURA QUADRATURE RADIATIONS
RADICALITY RADICATING RADICATION REACTUATED READAPTING REANIMATED
REATTACHED REATTACKED REATTAINED RERADIATED RERADIATES RETALIATED
RETARDANCE RETARDANCY RETARDANTS REVALIDATE REVALUATED RHODANATES
RITARDANDI RITARDANDO ROADCRAFTS ROADSTEADS SABBATISED SABBATIZED
SACCULATED SACERDOTAL SALTIGRADE SANDALFEET SANDALFOOT SANDBLASTS
SANDCASTLE SCAPULATED SCORDATURA SEASTRANDS SHADOWCAST SKATEBOARD
SMARAGDITE SMARTARSED SMARTASSED SPATANGOID STACKYARDS STAGEHANDS
STAGEHEADS STAIRCASED STAIRHEADS STALEMATED STAMINODIA STANDARDLY
STANDFASTS STANDGALES STARBOARDS STERADIANS STOMODAEAL STRAMASHED
STRANDFLAT STRAPPADOS STRAVAIGED STRAWBOARD SWEATBANDS TABLELANDS
TABOGGANED TACKBOARDS TADALAFILS TAENIACIDE TAHSILDARS TAILBOARDS
TAILCOATED TAILORMADE TAMPONADES TANKERLOAD TANTALISED TANTALIZED
TARADIDDLE TARDIGRADE TARMACADAM TARPAPERED TARTARISED TARTARIZED
TAXIDERMAL TAYASSUIDS TEARGASSED TETRAHEDRA THREADBARE TILLANDSIA
TOADEATERS TOADFLAXES TOMAHAWKED TRACHEATED TRACHEIDAL TRACKROADS
TRADECRAFT TRADEMARKS TRADENAMES TRADUCIANS TRAGEDIANS TRAILHEADS
TRAINBANDS TRAINLOADS TRANSACTED TRANSLATED TRANSUDATE TRIANDRIAN
TRIAPSIDAL TRIRADIATE TWAYBLADES ULTRARAPID UNABATEDLY UNACTUATED
UNADJACENT UNANIMATED UNATTACHED UNDRAMATIC UNSATIATED UNTRADABLE
UPDATEABLE VACATIONED VACCINATED VACILLATED VACUOLATED VALIDATING
VALIDATION VALIDATORS VALIDATORY VANADIATES VANADINITE VARIEGATED
VARIOLATED WAISTBANDS WARRANTIED WASHSTANDS WASTELANDS WATCHBANDS
WATCHGUARD WATERHEADS WHEATLANDS WITHDRAWAL YARDMASTER ZAPATEADOS