There are 462 thirteen-letter words containing A, D, E and H, https://www.bestwordlist.com/c/a/4/13letterwordswithadeh.htm ACETALDEHYDES ACIDOPHILUSES ADIATHERMANCY ADMONISHMENTS ADRENOCHROMES AESTHETICISED AESTHETICIZED ALDERMANSHIPS AMPHIPLOIDIES ANAESTHETISED ANAESTHETIZED ANATHEMATISED ANATHEMATIZED ANDROSPHINGES ANDROSPHINXES ANTHEROZOOIDS ANTIAPARTHEID ANTIDIARRHEAL ANTIHYDROGENS APOSTROPHISED APOSTROPHIZED ARCHDUCHESSES ARCHIMANDRITE ASHAMEDNESSES AUTHENTICATED AUTOSCHEDIASM AUTOSCHEDIAZE BACHELORHOODS BACKSCRATCHED BENZALDEHYDES BIGHEADEDNESS BLANDISHMENTS BLOCKHEADEDLY BOARDINGHOUSE BODYSNATCHERS BRAINCHILDREN BREECHLOADERS BROKENHEARTED BUTYRALDEHYDE CADDISHNESSES CANDIDATESHIP CANDLEHOLDERS CANDLELIGHTED CANDLELIGHTER CARBOHYDRASES CARBOHYDRATES CARDIOGRAPHER CARDIOPATHIES CATHIODERMIES CEPHALOPODANS CEPHALOPODOUS CEPHALORIDINE CHALCEDONYXES CHALCOGENIDES CHANGEAROUNDS CHARACTERISED CHARACTERIZED CHATEAUBRIAND CHECKERBOARDS CHEQUERBOARDS CHICKABIDDIES CHILDBEARINGS CHILDRENSWEAR CHILIAHEDRONS CHIMNEYBOARDS CHLAMYDOSPORE CHONDROSAMINE CHOREOGRAPHED CHOWDERHEADED CHUCKLEHEADED CHURCHWARDENS CLEARHEADEDLY COACHBUILDERS COLDHEARTEDLY COMMANDERSHIP CREATUREHOODS CYBERCHONDRIA DAMPISHNESSES DAUGHTERBOARD DAUGHTERHOODS DAUGHTERLIEST DAUGHTERLINGS DEATHLESSNESS DEATHLINESSES DEBAUCHEDNESS DECAMETHONIUM DECHLORINATED DECHLORINATES DEHYDROGENASE DEHYDROGENATE DEMETHYLATING DEMETHYLATION DEMOGRAPHICAL DEMOGRAPHISTS DEPHLEGMATING DEPHLEGMATION DEPHLEGMATORS DERMATOGRAPHY DERMATOPHYTES DERMATOPHYTIC DERMOGRAPHIES DESULPHURATED DESULPHURATES DETACHABILITY DEXAMETHASONE DIAPHANEITIES DIAPHANOMETER DIATHERMACIES DIATHERMANOUS DIAZOMETHANES DIBRANCHIATES DICHLAMYDEOUS DICHLORACETIC DIEFFENBACHIA DIENCEPHALONS DIETHYLAMIDES DIETHYLAMINES DILETTANTEISH DIMETHYLAMINE DIOTHELETICAL DIPHENYLAMINE DISACCHARIDES DISAUTHORISED DISAUTHORISES DISAUTHORIZED DISAUTHORIZES DISCHARGEABLE DISCOGRAPHERS DISCOGRAPHIES DISENCHAINING DISENCHANTERS DISENCHANTING DISENTHRALLED DISFRANCHISED DISFRANCHISES DISHABILITATE DISHARMONISED DISHARMONISES DISHARMONIZED DISHARMONIZES DISHEARTENING DISHONOURABLE DISINTHRALLED DITTOGRAPHIES DODECAHEDRONS DODECAPHONIES DODECAPHONISM DODECAPHONIST DOLICHOCEPHAL DOUBLEHEADERS DOWNHEARTEDLY DRAUGHTSWOMEN DUNDERHEADISM DYOTHELETICAL DYOTHELITICAL DYSAESTHESIAS DYSMENORRHEAL DYSMENORRHEAS DYSMENORRHOEA EGGHEADEDNESS ENCHONDROMATA ENDOLYMPHATIC ENDOTHELIOMAS ENTERCHAUNGED ESOPHAGITIDES EXHEREDATIONS FADDISHNESSES FATHEADEDNESS FEATHERBEDDED FEATHEREDGING FEATHERHEADED FELDSPATHOIDS FINGERBREADTH FOOLHARDINESS FORESHADOWERS FORESHADOWING FORMALDEHYDES FOUNTAINHEADS FREEHEARTEDLY GENTLEMANHOOD GILLRAVITCHED GRADUATESHIPS GRANDCHILDREN GRANDDAUGHTER GRANDFATHERED GRANDFATHERLY GRANDMOTHERLY GUANETHIDINES HADROSAURUSES HAEMODIALYSER HAEMODIALYSES HAEMODIALYSIS HAEMODIALYZER HAEMODILUTION HAEMODYNAMICS HAEMOPHILIOID HAEMORRHOIDAL HAEMOSIDERINS HAGGARDNESSES HAIRDRESSINGS HAIRSBREADTHS HALFHEARTEDLY HANDCRAFTSMEN HANDICRAFTERS HANDKERCHIEFS HANDSBREADTHS HAPHAZARDNESS HAPHAZARDRIES HARDHEARTEDLY HARDSCRABBLES HARLEQUINADES HAUSSMANNISED HAUSSMANNIZED HAZARDOUSNESS HEADMISTRESSY HEADQUARTERED HEADSHRINKERS HEBDOMADARIES HEMICHORDATES HEMODIALYZERS HEMORRHOIDALS HENCEFORWARDS HENDECAHEDRON HEPTADECANOIC HEREDITAMENTS HEREDITARIANS HERMAPHRODITE HETERODACTYLS HEXACHLORIDES HEXACTINELLID HEXADACTYLOUS HEXAFLUORIDES HEXAGRAMMOIDS HISPANIOLISED HISPANIOLIZED HOCHMAGANDIES HOLIDAYMAKERS HOMESTEADINGS HOMOSCEDASTIC HORSERADISHES HOTHEADEDNESS HOUGHMAGANDIE HOUSEHUSBANDS HUMBLEBRAGGED HYALURONIDASE HYDNOCARPATES HYDRARTHROSES HYDRASTININES HYDROCEPHALIC HYDROCEPHALUS HYDROCRACKERS HYDROGENATING HYDROGENATION HYDROGENATORS HYDROGRAPHERS HYDROGRAPHIES HYDROMAGNETIC HYDROMASSAGES HYDROMEDUSANS HYDROMETRICAL HYDROSULPHATE HYDROTHERAPIC HYDROTHORACES HYDROTHORAXES HYDROXYACETIC HYDROXYLAMINE HYPERBOLOIDAL HYPERINFLATED HYPOACIDITIES HYPOSPADIASES IDEOGRAPHICAL IMPOSTHUMATED INDOMETHACINS INTERWREATHED KALEIDOPHONES KINDHEARTEDLY KNUCKLEHEADED LADDISHNESSES LAMPADEPHORIA LANDOWNERSHIP LOATHEDNESSES LYMPHADENITIS LYMPHOADENOMA MACHINEGUNNED MAIDISHNESSES MEDIATORSHIPS MERCHANDISERS MERCHANDISING MERCHANDIZERS MERCHANDIZING METAMORPHOSED METHODISATION METHODIZATION MISAPPREHENDS MISCHANNELLED MISEMPHASISED MISEMPHASIZED MITHRIDATISED MITHRIDATISES MITHRIDATIZED MITHRIDATIZES MODERATORSHIP MONODELPHIANS MULTIAUTHORED MULTIBRANCHED MULTIWARHEADS NEANDERTHALER NEARSIGHTEDLY NONDETACHABLE NONHEREDITARY NORTHEASTWARD NORTHWESTWARD OFFHANDEDNESS OPENHEARTEDLY ORTHOPAEDICAL ORTHOPAEDISTS OVERHARVESTED OVERSHADOWING OVERWEATHERED PAEDOMORPHISM PAEDOPHILIACS PAEDOTROPHIES PAMPHLETEERED PARAHYDROGENS PARASPHENOIDS PARCHEDNESSES PARCHMENTISED PARCHMENTIZED PARENTHESISED PARENTHESIZED PAROCHIALISED PAROCHIALIZED PEBBLEDASHING PENDRAGONSHIP PENTADELPHOUS PENTAHYDRATES PERICHONDRIAL PHARYNGITIDES PHILANDERINGS PHOTOCATHODES PHOTOENGRAVED PHYTONADIONES PIGHEADEDNESS PINHEADEDNESS POLYADELPHOUS POSTAPARTHEID PREADMONISHED PREADMONISHES PREADULTHOODS PREAUTHORIZED PROCATHEDRALS PROTOCHORDATE PSEUDEPIGRAPH PSYCHOBABBLED QUADRAPHONIES QUADROPHONIES RADIESTHESIAS RADIESTHESIST RADIOCHEMICAL RADIOCHEMISTS RADIOGRAPHERS RADIOGRAPHIES RADIOTHERMIES REESTABLISHED REHABILITATED REPREHENDABLE RHABDOMANCERS RHABDOMANCIES RHABDOSPHERES RHABDOVIRUSES RHADAMANTHINE RHODOMONTADED RHODOMONTADES ROADWORTHIEST SCALENOHEDRON SCHADENFREUDE SCRIMSHANDERS SCRIMSHANDIED SCRIMSHANDIES SEMIDETACHEDS SHADOWINESSES SHAGGEDNESSES SHAREHOLDINGS SHUFFLEBOARDS SLAVEHOLDINGS SLEDGEHAMMERS SOFTHEARTEDLY SOPHISTICATED SOUTHEASTWARD SOUTHWESTWARD SPAGHETTIFIED SPATTERDASHES SPINDLESHANKS STADHOLDERATE STAKEHOLDINGS STAPHYLINIDAE STEEPLECHASED STEPDAUGHTERS STEREOGRAPHED STICKHANDLERS STRAIGHTBREDS STRAIGHTEDGED STRAIGHTEDGES STRAIGHTLACED STRANGLEHOLDS STROPHIOLATED SUBDEACONSHIP SULPHADIAZINE SULPHADOXINES SULPHONAMIDES SUPERHARDENED SYCOPHANTISED SYCOPHANTIZED SYNADELPHITES SYNECDOCHICAL TECHNICALISED TECHNICALIZED TENDERHEARTED TETARTOHEDRAL TETRACHLORIDE TETRADRACHMAS TETRADRACHMON TETRAHEDRALLY TETRAHEDRITES THENCEFORWARD THERMODYNAMIC THERMOSTATTED THIABENDAZOLE THIOCARBAMIDE THIORIDAZINES THOROUGHPACED THREADINESSES TRAPEZOHEDRAL TRAPEZOHEDRON TRIMETHADIONE TRISACCHARIDE TRISOCTAHEDRA UNAPPREHENDED UNASHAMEDNESS UNCHLORINATED UNCHRISTIANED UNDERACHIEVED UNDERACHIEVER UNDERACHIEVES UNDERCHARGING UNDEREMPHASES UNDEREMPHASIS UNDERHANDEDLY UNESTABLISHED UNHANDINESSES UNTHRIFTIHEAD UNTHRIFTYHEAD VIDEOGRAPHERS VIDEOGRAPHIES WEATHERBOARDS WEATHERCOCKED WHEELBARROWED WHISKERANDOED WITHDRAWMENTS WITHDRAWNNESS WRONGHEADEDLY ZANTEDESCHIAS