There are 677 thirteen-letter words containing A, D, O, S and T, https://www.bestwordlist.com/c/a/5/13letterwordswithadost.htm ACCOMMODATORS ACCORDIONISTS ACOTYLEDONOUS ADAPTATIONIST ADIAPHORISTIC ADJUDICATIONS ADMINISTRATOR ADMONISHMENTS ADORABILITIES ADRENOCEPTORS ADSORBABILITY ADULTERATIONS ADVENTURESOME ADVENTUROUSLY AERODIGESTIVE AEROSIDERITES AGATHODAIMONS ALDOLISATIONS ALDOLIZATIONS ALDOSTERONISM AMBIDEXTEROUS ANDOUILLETTES ANDROCENTRISM ANDROSTERONES ANECDOTALISMS ANECDOTALISTS ANTHEROZOOIDS ANTIANDROGENS ANTIHYDROGENS ANTIMODERNISM ANTIMODERNIST ANTIPERIODICS ANTISPASMODIC APOSTROPHISED APOSTROPHIZED ARACHNOIDITIS ARFVEDSONITES ASTRODYNAMICS AUDIOCASSETTE AUDIOMETRISTS AUTOCATALYSED AUTODESTRUCTS AUTOSCHEDIASM AUTOSCHEDIAZE AUTOSUGGESTED AUTOXIDATIONS BACKWOODSIEST BACTERIOCIDES BASIDIOMYCETE BATTLEGROUNDS BIOPESTICIDAL BLOATEDNESSES BOATBUILDINGS BODDHISATTVAS BODYSNATCHERS BROADCASTINGS CARBOHYDRATES CARDBOARDIEST CARDIOLOGISTS CARDIOPATHIES CARDIOVERTERS CATHIODERMIES CATHODOGRAPHS CHONDROBLASTS CHONDROMATOUS CHONDROSTIANS CLAUDICATIONS CLAVICHORDIST COADAPTATIONS COADJUTORSHIP COADJUTRESSES COADMINISTERS COASTGUARDMAN COASTGUARDMEN COCCIDIOSTATS CODIFICATIONS COLOQUINTIDAS COMMENDATIONS COMPACTEDNESS CONDEMNATIONS CONDENSATIONS CONDITIONATES CONDYLOMATOUS CONQUISTADORS CONSERVATISED CONSERVATIZED CONSIDERATELY CONSIDERATION CONSIDERATIVE CONSOLIDATING CONSOLIDATION CONSOLIDATIVE CONSOLIDATORS CONSTRAINEDLY CONTAINERISED CONTRABANDISM CONTRABANDIST CONTRADICTERS CONTRADICTORS COORDINATIONS CORESIDENTIAL COSTARDMONGER COTRANSDUCING COTRANSFERRED COTRANSPORTED COUNTERPLEADS COUNTERSEALED COUNTERSTATED COUNTERTRADES CREATUREHOODS CRYSTALLOIDAL CUSTODIANSHIP CYCLOPAEDISTS CYTODIAGNOSES CYTODIAGNOSIS DACTYLOLOGIES DAUGHTERHOODS DEACTIVATIONS DEAMINISATION DEASPIRATIONS DEBILITATIONS DECAPITATIONS DECAPSULATION DECARBONATORS DECELERATIONS DECHLORINATES DECLINATORIES DECOLORATIONS DECOMPENSATED DECOMPENSATES DECONGESTANTS DECONSECRATED DECONSECRATES DECORTICATORS DECRUSTATIONS DECUMULATIONS DEFLAGRATIONS DEFLATIONISTS DEFLOCCULANTS DEFLOCCULATES DEFORCIATIONS DEFORESTATION DEFRAUDATIONS DEGENERATIONS DEGLACIATIONS DEINDEXATIONS DEIONISATIONS DEIONIZATIONS DELAMINATIONS DELIBERATIONS DELIMITATIONS DEMOCRATISERS DEMOCRATISING DEMOCRATIZERS DEMODULATIONS DEMOGRAPHISTS DEMONETARISED DEMONETARISES DEMONETARIZES DEMONISATIONS DEMONIZATIONS DEMONOLATRIES DEMONSTRATING DEMONSTRATION DEMONSTRATIVE DEMONSTRATORS DEMONSTRATORY DEMOTIVATIONS DENATIONALISE DENATURATIONS DENDROLATRIES DENOMINATIONS DENOMINATIVES DENSIFICATION DENUNCIATIONS DEODORISATION DEOPPILATIONS DEOPPILATIVES DEOXIDISATION DEPHLEGMATORS DEPOPULATIONS DEPOSITATIONS DEPRECIATIONS DEPUTISATIONS DEPUTIZATIONS DERACINATIONS DEREALISATION DEREGULATIONS DERIVATIONIST DERMATOLOGIES DERMATOLOGIST DERMATOPHYTES DERMATOPLASTY DESALINATIONS DESATURATIONS DESEGREGATION DESERTISATION DESERTIZATION DESIDERATIONS DESOBLIGEANTE DESPOLIATIONS DESQUAMATIONS DESTRUCTIONAL DESULFURATION DETERMINATORS DETOXICATIONS DETRUNCATIONS DEUTERAGONIST DEUTERANOPIAS DEUTEROGAMIES DEUTEROGAMIST DEUTEROPLASMS DEVIATIONISMS DEVIATIONISTS DEVOTIONALIST DEXAMETHASONE DEXTROCARDIAS DIABETOLOGIST DIACHRONISTIC DIAGEOTROPISM DIAGNOSTICIAN DIALOGISTICAL DIALYPETALOUS DIASTEREOMERS DIASTROPHISMS DIATHERMANOUS DIATOMICITIES DIAZOMETHANES DIAZOTISATION DICHROMATISMS DICTATORSHIPS DICTYOPTERANS DIESELISATION DIESELIZATION DIFUNCTIONALS DIGITISATIONS DIGITIZATIONS DIGLADIATIONS DIJUDICATIONS DILACERATIONS DILAPIDATIONS DILATOMETRIES DILUCIDATIONS DIMERISATIONS DIMERIZATIONS DIORISTICALLY DIPLOMATISING DIPROPELLANTS DISACCUSTOMED DISAFFECTIONS DISAFFORESTED DISAPPOINTING DISASSOCIATED DISASSOCIATES DISAUTHORISED DISAUTHORISES DISAUTHORIZED DISAUTHORIZES DISCEPTATIONS DISCEPTATIOUS DISCLAMATIONS DISCOLORATION DISCORPORATED DISCORPORATES DISCRETIONARY DISCRIMINATOR DISESTIMATION DISFIGURATION DISFUNCTIONAL DISGRADATIONS DISGREGATIONS DISINFLATIONS DISINTEGRATOR DISINTOXICATE DISINVIGORATE DISOBLIGATION DISOBLIGATORY DISOPERATIONS DISORDINATELY DISORIENTATED DISORIENTATES DISPASSIONATE DISPENSATIONS DISPLANTATION DISPOSABILITY DISPOSITIONAL DISPROPRIATED DISPROPRIATES DISREPUTATION DISSEMINATION DISSEMINATORS DISSERTATIONS DISSEVERATION DISSIMILATION DISSIMILATORY DISSIMULATION DISSIMULATORS DISSOCIATIONS DISTILLATIONS DITTOGRAPHIES DIVARICATIONS DIVINISATIONS DIVINIZATIONS DOCTRINAIRISM DOCTRINARIANS DOCTRINARISMS DOCUMENTALIST DOCUMENTARIES DOCUMENTARISE DOCUMENTARIST DODECAPHONIST DOGMATISATION DOGMATOLOGIES DOLLARISATION DOMESTICATING DOMESTICATION DOMESTICATIVE DOMESTICATORS DOOMWATCHINGS DOSIMETRICIAN DRAFTSPERSONS DRAMATISATION DRAUGHTBOARDS DRAUGHTPROOFS DRAUGHTSWOMAN DRAUGHTSWOMEN DYNAMOMETRIES DYSFUNCTIONAL EDITORIALISED EDITORIALISER EDITORIALISES EDITORIALISTS EDITORIALIZES EDUCATIONESES EDUCATIONISTS EDULCORATIONS EMOTIONALISED ENDOPARASITES ENDOPARASITIC ENDOPEPTIDASE ENDOTHELIOMAS EPIDOTISATION ESOPHAGITIDES EUDAEMONISTIC EUDAIMONISTIC EXHEREDATIONS EXOPEPTIDASES EXPEDITATIONS FACTIONALISED FARADISATIONS FARADIZATIONS FELDSPATHOIDS FEUDALISATION FICTIONALISED FLUIDISATIONS FLUIDIZATIONS FLUORIDATIONS FLUTTERBOARDS FOOTDRAGGINGS FOUNDATIONERS FOUNTAINHEADS GALACTOSIDASE GASTEROPODOUS GEODYNAMICIST GLADIATORSHIP GONADECTOMIES GONADOTROPINS GRANDIOSITIES GRANODIORITES HEMICHORDATES HETERODACTYLS HEXADACTYLOUS HOMESTEADINGS HOMOSCEDASTIC HOTHEADEDNESS HYBRIDISATION HYDNOCARPATES HYDRARTHROSES HYDRARTHROSIS HYDROGENATORS HYDROLYSATION HYDROPATHISTS HYDROSOMATOUS HYDROSTATICAL HYDROSULPHATE HYDROTHORACES HYDROTHORAXES HYPOACIDITIES ICHTHYOPSIDAN IDEALISATIONS IDEALIZATIONS IDIOMATICNESS IDIOPLASMATIC IDIOSYNCRATIC IDIOTICALNESS IMMODERATIONS IMPOSTHUMATED INADAPTATIONS INCONSIDERATE INDIVIDUATORS INDOCTRINATES INDOMETHACINS INORDINATIONS INSUBORDINATE INTIMIDATIONS INVALIDATIONS ISOANTIBODIES KITEBOARDINGS LEPIDOPTERANS LEUCOPLASTIDS LOATHEDNESSES MACHAIRODONTS MADERISATIONS MADERIZATIONS MAGNITUDINOUS MALADROITNESS MALTODEXTRINS MASTOIDECTOMY MASTOIDITIDES MASTOIDITISES MEDIATISATION MEDIATORSHIPS MEDICAMENTOUS MELODRAMATICS MELODRAMATISE MELODRAMATIST METAMORPHOSED METHODISATION MIDAFTERNOONS MISCATALOGUED MISEDUCATIONS MODERATORSHIP MODERNISATION MODIFICATIONS MOLDABILITIES MONODACTYLOUS MONOSATURATED MOUNTAINSIDES MYOCARDITISES MYXOEDEMATOUS NEMATODIRUSES NICOTINAMIDES NIDIFICATIONS NOMADISATIONS NOMADIZATIONS NONASSOCIATED NONBROADCASTS NONCANDIDATES NONEDITORIALS NONEDUCATIONS NONINDUSTRIAL NONSEGREGATED NONVALIDITIES NORTHEASTWARD NORTHWESTWARD NUCLEOTIDASES OBSTREPERATED OCCIDENTALISE OCCIDENTALISM OCCIDENTALIST ODONATOLOGIES ODONATOLOGIST ODONTOBLASTIC ODONTOPHOBIAS ODONTOPHORANS ORTHOPAEDISTS OUTDISTANCING OUTDOORSWOMAN OUTSTANDINGLY OUTWARDNESSES OVERADJUSTING OVERADVERTISE OVERDECORATES OVERDRAMATICS OVERDRAMATISE OVERESTIMATED OVERHARVESTED OVERMEDICATES OVERSATURATED PAEDOBAPTISMS PAEDOBAPTISTS PAEDOTROPHIES PALINDROMISTS PALLIDOTOMIES PAROTIDITISES PEDICULATIONS PENTACRINOIDS PENTADELPHOUS PENTAPLOIDIES PERIODICALIST PERIODISATION PERISSODACTYL PEROXIDATIONS PHOSPHATIDYLS PHOTOCATHODES PHOTODYNAMICS PHYTONADIONES PICTORIALISED PIDGINISATION PLASMODESMATA PLASTERBOARDS PLATITUDINOUS PODSOLISATION PODSOLIZATION PODZOLISATION POLITICALISED POLYDACTYLIES POLYDACTYLISM POLYDACTYLOUS POSTAPARTHEID POSTDEBUTANTE POSTDILUVIANS POSTDOCTORALS POSTDOCTORATE POSTGRADUATES POSTSECONDARY PREADOLESCENT PREADULTHOODS PREDATORINESS PREDESTINATOR PREDOMINATORS PREMEDITATORS PREPONDERATES PRIVATDOCENTS PRIVATDOZENTS PROCATHEDRALS PRODIGALITIES PROGRADATIONS PROPAEDEUTICS PROPAGANDISTS PROSTAGLANDIN PROSTHODONTIA PROTERANDRIES PROTERANDROUS PSEUDOMARTYRS PTERIDOMANIAS PTERODACTYLES QUADRISECTION RADIALISATION RADIATIONLESS RADIOCHEMISTS RADIOELEMENTS RADIOISOTOPES RADIOISOTOPIC RADIOPACITIES RADIOPHONISTS RADIOTHERMIES RADIOTHORIUMS RANDOMISATION READAPTATIONS REBROADCASTED RECONSECRATED RECONSOLIDATE REDECORATIONS REDEDICATIONS REFOUNDATIONS REORDINATIONS RESPONDENTIAS RETRANSFORMED REVALIDATIONS RHABDOMANTIST RHODOMONTADES ROADABILITIES ROADWORTHIEST RODOMONTADERS RUGGEDISATION SACERDOTALISE SACERDOTALISM SACERDOTALIST SACERDOTALIZE SADOMASOCHIST SCLERODERMATA SCRATCHBOARDS SCROBICULATED SECTIONALISED SECTIONALIZED SEDIMENTATION SEDITIONARIES SEMIAUTOMATED SHADOWCASTING SKATEBOARDERS SKATEBOARDING SODOMITICALLY SOFTHEARTEDLY SOLDERABILITY SOLIDUNGULATE SOMNAMBULATED SOPHISTICATED SOUNDTRACKING SOUTHEASTWARD SOUTHWESTWARD SPEEDBOATINGS SPERMATOCIDAL SPERMATOCIDES SPERMATOZOIDS SPLAYFOOTEDLY STADDLESTONES STADHOLDERATE STAKEHOLDINGS STANDOFFISHLY STEAMROLLERED STEGANOPODOUS STEREOGRAPHED STERNOMASTOID STORYBOARDING STRANGLEHOLDS STRIDULATIONS STROPHIOLATED SUBADOLESCENT SUBCONTRACTED SUBDEACONATES SUBDIACONATES SUBFEUDATIONS SUBINDICATION SUBORDINATELY SUBORDINATING SUBORDINATION SUBORDINATIVE SUBORDINATORS SUBSIDISATION SUBSIDIZATION SUPERADDITION SUPERDIPLOMAT SUPERDOMINANT SUPEREROGATED SUPERORDINATE SUPEROVULATED SUPERSTARDOMS SYCOPHANTISED SYCOPHANTIZED SYMPTOMATISED SYMPTOMATIZED SYNARTHRODIAL TENDERISATION TETRADYNAMOUS TETRAPLOIDIES THERMOSTATTED THIORIDAZINES THOUSANDFOLDS TRADESPEOPLES TRADESPERSONS TRADITIONISTS TRADITIONLESS TRAGICOMEDIES TRANSDUCTIONS TRANSPORTEDLY TRANSUDATIONS TRIPUDIATIONS TRISOCTAHEDRA TURACOVERDINS TYRANNOSAURID UNADVENTUROUS UNCOMPENSATED UNCONSECRATED UNCONSTRAINED UNCONSUMMATED UNDERCOATINGS UNDISSOCIATED UNDOMESTICATE UNDULATIONIST UNMETABOLISED UNSTERCORATED UNTRANSFORMED VACATIONLANDS VALEDICTORIES VANDALISATION VASODILATIONS VIDEOCASSETTE WATCHDOGGINGS WEATHERBOARDS WOODCRAFTSMAN WOODCRAFTSMEN XANTHOCHROIDS XERODERMATOUS ZALAMBDODONTS ZYGODACTYLISM ZYGODACTYLOUS