There are 762 twelve-letter words containing 2A, D and E, https://www.bestwordlist.com/c/a/4/12letterwordswithaade.htm ABANDONMENTS ABANDONWARES ABECEDARIANS ABSINTHIATED ABSTRACTEDLY ACADEMICALLY ACADEMICIANS ACADEMICISMS ACCELERANDOS ACCIDENTALLY ACCLIMATISED ACCLIMATIZED ACCOMMODABLE ACCOMMODATED ACCOMMODATES ACCORDANCIES ACCREDITABLE ACCULTURATED ACETALDEHYDE ACETANILIDES ACHLAMYDEOUS ACHROMATISED ACHROMATIZED ACIDANTHERAS ACQUITTANCED ADAPTIVENESS ADAPTIVITIES ADENOPATHIES ADEQUATENESS ADJECTIVALLY ADJUDICATIVE ADJUSTMENTAL ADMINICULATE ADMINISTRATE ADORABLENESS ADULARESCENT ADULTERATING ADULTERATION ADULTERATORS ADVANCEMENTS ADVANTAGEOUS ADVERBIALISE ADVERBIALIZE ADVERGAMINGS ADVERSATIVES ADVERTORIALS AERODYNAMICS AFFRANCHISED AGGLOMERATED AGGLUTINATED AGGRANDISERS AGGRANDIZERS AGUARDIENTES ALDERMANLIER ALDERMANLIKE ALDERMANRIES ALDERMANSHIP ALEXANDERSES ALEXANDRINES ALEXANDRITES ALPHABETISED ALPHABETIZED AMAZEDNESSES AMBASSADRESS AMPHIDENTATE ANECDOTALISM ANECDOTALIST ANIMADVERTED ANIMADVERTER ANTEDILUVIAL ANTEDILUVIAN ANTEMERIDIAN ANTEPRANDIAL ANTIACADEMIC ANTIADITISES ANTIANDROGEN ANTICATHODES ANTIDIABETIC ANTIPREDATOR APODEICTICAL APPENDICULAR APPROPRIATED APPROXIMATED ARABINOSIDES ARCHDEACONRY ARCHDIOCESAN ARQUEBUSADES ARTERIALISED ARTERIALIZED ASCENDANCIES ASSAFOETIDAS ASSASSINATED ASSUBJUGATED ASTEROIDEANS ATTENDANCIES AVERRUNCATED BACKGAMMONED BACKHANDEDLY BACKPEDALING BACKPEDALLED BACKWARDNESS BACTERICIDAL BALDERDASHES BALLADEERING BALLADMONGER BANDEIRANTES BANDERSNATCH BARDOLATRIES BARRAMUNDIES BASTARDLIEST BEADBLASTERS BEADBLASTING BEAVERBOARDS BLACKGUARDED BLACKHANDERS BLACKLEADING BLADDERWRACK BRADYKINESIA BREADBASKETS BREADBOARDED BREAKDANCERS BREAKDANCING BREATHALYSED BREATHALYZED BROADCASTERS CACKERMANDER CADAVEROUSLY CAESALPINOID CALCULATEDLY CALENDARISED CALENDARISES CALENDARISTS CALENDARIZED CALENDARIZES CALLIGRAPHED CAMARADERIES CAMELEOPARDS CANDELABRUMS CANDIDATURES CANNIBALISED CANNIBALIZED CANNONBALLED CARBAMIDINES CARBOHYDRASE CARBOHYDRATE CARBONYLATED CARBOXYLATED CARDBOARDIER CARDINALATES CARDIOMEGALY CARDIOPLEGIA CARDSHARPERS CARPETBAGGED CARUNCULATED CATALOGUISED CATALOGUIZED CEPHALOPODAN CHAMBERHANDS CHAMBERMAIDS CHANGEAROUND CHOREODRAMAS CLAIRAUDIENT CLAPPERBOARD COLLABORATED COMPAGINATED CONCATENATED CONFABULATED CONFLAGRATED CONTAMINATED CONTRADANCES CRACKBRAINED CRANKHANDLES CURVICAUDATE CYCLANDELATE CYCLOPAEDIAS DAGGERBOARDS DAMASCEENING DAMASCENINGS DAMASKEENING DAMNABLENESS DARRAIGNMENT DASTARDLIEST DAYDREAMIEST DAYDREAMINGS DAYDREAMLIKE DEACTIVATING DEACTIVATION DEACTIVATORS DEALBREAKERS DEAMBULATORY DEAMINATIONS DEARTICULATE DEASPIRATING DEASPIRATION DEATHWATCHES DEBARCATIONS DEBARKATIONS DEBARRASSING DECAFFEINATE DECAHYDRATES DECALCOMANIA DECANTATIONS DECAPITALISE DECAPITALIZE DECAPITATING DECAPITATION DECAPITATORS DECAPSULATED DECAPSULATES DECARBONATED DECARBONATES DECARBONATOR DECASUALISED DECASUALISES DECASUALIZED DECASUALIZES DECASYLLABIC DECASYLLABLE DECLAMATIONS DECLARATIONS DEDICATIONAL DEDICATORIAL DEDRAMATISED DEDRAMATISES DEDRAMATIZED DEDRAMATIZES DEEPWATERMAN DEFAECATIONS DEFALCATIONS DEFAMATORILY DEFLAGRATING DEFLAGRATION DEFLAGRATORS DEFLATIONARY DEFRAUDATION DEGLACIATION DEGRADATIONS DELAMINATING DELAMINATION DEMARCATIONS DEMARKATIONS DEMOCRATICAL DEMONIACALLY DEMONOMANIAS DENATURALISE DENATURALIZE DENATURATION DENDRACHATES DEPARTMENTAL DEPAUPERATED DEPAUPERATES DEPRAVATIONS DERACIALISED DERACIALISES DERACIALIZED DERACIALIZES DERACINATING DERACINATION DERIVATIONAL DERMABRASION DERMAPLANING DERMAPTERANS DESACRALISED DESACRALISES DESACRALIZED DESACRALIZES DESALINATING DESALINATION DESALINATORS DESATURATING DESATURATION DESQUAMATING DESQUAMATION DESQUAMATIVE DESQUAMATORY DEUTERANOPIA DEVALUATIONS DEVASTATIONS DEXTROCARDIA DIAGNOSEABLE DIAGONALISED DIAGONALISES DIAGONALIZED DIAGONALIZES DIAGRAMMABLE DIALECTICIAN DIAMAGNETISM DIATESSARONS DIATHERMANCY DIATOMACEOUS DIAZOMETHANE DIBRANCHIATE DICARPELLARY DILACERATING DILACERATION DISACCHARIDE DISADVANTAGE DISAFFILIATE DISAGGREGATE DISAGREEABLE DISAGREEABLY DISALLOWABLE DISALLOWANCE DISAMBIGUATE DISANALOGIES DISAPPEARING DISARMAMENTS DISASSOCIATE DISCALCEATES DISEMBARRASS DISPLACEABLE DISPLEASANCE DISPLEASANTS DISTRACTABLE DISTRAINABLE DIVARICATELY DODECAGYNIAN DODECAHEDRAL DORSOLATERAL DOWNLOADABLE DRACONTIASES DRAMATISABLE DRAMATIZABLE DRAMATURGIES DRAPEABILITY DREADNAUGHTS DUNIEWASSALS DUNNIEWASSAL DYSAESTHESIA DYSPAREUNIAS EMBARCADEROS EMPARADISING ENARTHRODIAL ENCAPSULATED ENCARNALISED ENCARNALIZED ENDAMAGEMENT ENDOPARASITE ENDOTRACHEAL ENGARLANDING EQUIBALANCED ERADICATIONS EUTHANATISED EUTHANATIZED EXTRADITABLE EXTRAMUNDANE EXTRAPOLATED EXTRAVAGATED EXTRAVASATED FAINTHEARTED FAMILIARISED FAMILIARIZED FANFARONADED FANFARONADES FASCICULATED FASCINATEDLY FEATHERHEADS FLANNELBOARD FOUNTAINHEAD FRACTIONATED FRAGMENTATED FUNAMBULATED FUNDAMENTALS GALACTOSIDES GALLBLADDERS GALLIARDISES GALRAVITCHED GANGLIONATED GANGSTERLAND GEODYNAMICAL GLASSPAPERED GLASSYHEADED GRADABLENESS GRADUALITIES GRADUATESHIP GRANDDADDIES GRANDFATHERS GRANDMASTERS GRANDPAPPIES GRANDPARENTS GRANDSTANDED GRANDSTANDER GREATHEARTED HABERDASHERS HABERDASHERY HAEMODYNAMIC HAEMORRHAGED HAIRBREADTHS HAIRSBREADTH HALFENDEALES HALLUCINATED HAMMERHEADED HANDBREADTHS HANDICAPPERS HANDICRAFTER HANDSBREADTH HARDHEADEDLY HARDSCRABBLE HARLEQUINADE HARUSPICATED HEADBANGINGS HEADMASTERLY HEADQUARTERS HEADREACHING HEADTEACHERS HEAVYHEARTED HEBDOMADALLY HENDECAGONAL HENDECAHEDRA HERALDICALLY HEREDITARIAN HEXADACTYLIC HEXADECANOIC HEXADECIMALS HEXAGRAMMOID HEXAHYDRATED HEXAHYDRATES HOLIDAYMAKER HOLLANDAISES HYDNOCARPATE HYDRALAZINES HYDROMASSAGE HYPNOPAEDIAS HYRACOIDEANS IDEALISATION IDEALIZATION IDEATIONALLY INADEQUACIES INADEQUATELY INCAPSULATED INCARCERATED INCARDINATED INCARDINATES INCARNADINED INCARNADINES INELABORATED INERADICABLE INERADICABLY INFATUATEDLY INSTAGRAMMED INSTANTIATED INTERCALATED INTERSTADIAL INTRAMUNDANE IRRADIANCIES JACKHAMMERED LABIODENTALS LABRADOODLES LABRADORITES LAGGARDLIEST LAMPADEDROMY LANDAULETTES LANDGRAVATES LANDGRAVIATE LANDGRAVINES LARGEHEARTED LAUDABLENESS LEADERBOARDS LEATHERHEADS LOADSAMONEYS LOADSAMONIES LOGODAEDALIC LOGODAEDALUS LONGICAUDATE MACADAMISERS MACADAMIZERS MACERANDUBAS MACHICOLATED MADEFACTIONS MADERISATION MADERIZATION MADREPORIANS MAENADICALLY MAIDSERVANTS MAINSTREAMED MAINTENANCED MALADDRESSES MALADJUSTIVE MANDARINATES MANDIBULATED MANDIBULATES MANSPREADERS MANSPREADING MANUFACTURED MARGINALISED MARGINALIZED MARISCHALLED MARIVAUDAGES MARSHLANDERS MARTELLANDOS MASQUERADERS MASQUERADING MASSERANDUBA MATERIALISED MATERIALIZED MATHEMATISED MATHEMATIZED MATRICULATED MEDIAEVALISM MEDIAEVALIST MEDICAMENTAL MEGALOCARDIA MEGASTARDOMS MELODRAMATIC METASTASISED METASTASIZED METHANAMIDES MICROMANAGED MISALLOCATED MISCATALOGED MISDEMEANANT MISEVALUATED MULTIWARHEAD MURDERABILIA NAPHTHALISED NAPHTHALIZED NARROWCASTED NATIONALISED NATIONALIZED NEANDERTALER NEANDERTHALS NEOPAGANISED NEOPAGANIZED NIACINAMIDES NONACADEMICS NONACTIVATED NONAUTOMATED NONCANDIDATE NONGRADUATES NORADRENALIN OCTAHEDRALLY OUTBARGAINED OVERABUNDANT OVERANALYSED OVERANALYZED OVERARRANGED OVERBALANCED OVERDRAMATIC OVERPACKAGED PACHYDERMIAS PADDLEBOARDS PAEDERASTIES PAEDIATRISTS PAEDOBAPTISM PAEDOBAPTIST PAEDOLOGICAL PAEDOPHILIAC PAEDOPHILIAS PALUDAMENTUM PANDAEMONIUM PANDANACEOUS PANDEMONIANS PAPPARDELLES PARADOXURINE PARAHYDROGEN PARALDEHYDES PARALLELISED PARALLELIZED PARAMEDICALS PARAMETRISED PARAMETRIZED PARAPERIODIC PARAQUADRATE PARASCENDERS PARASCENDING PARASITICIDE PARASPHENOID PARASUICIDES PARFOCALISED PARFOCALIZED PARTICIPATED PASQUINADERS PASTURELANDS PEDANTICALLY PEDANTOCRACY PEDANTOCRATS PEDIATRICIAN PEDICELLARIA PENTADACTYLE PENTADACTYLS PENTADACTYLY PENTAHYDRATE PERAMBULATED PLANTIGRADES PLASMODESMAS PLASTERBOARD POSTGRADUATE PREAMBULATED PREVARICATED PROCATHEDRAL PROPAGANDISE PROPAGANDIZE PSEUDOSCALAR PTERIDOMANIA QUADRAPLEGIA QUADRAPLEGIC QUADRATRICES QUADRATRIXES QUADRENNIALS QUADRIENNIAL QUADRIPLEGIA QUADRIVALENT QUARTERSAWED RADICALITIES RADIESTHESIA RADIOGRAPHED RADIOGRAPHER RADIOLABELED RADIOTHERAPY RADIOTRACERS RALLENTANDOS RATIOCINATED RATIONALISED RATIONALIZED REACCLIMATED REACQUAINTED READABLENESS READAPTATION READJUSTABLE READMITTANCE REAGGREGATED REAPPARELLED REBROADCASTS RECALCULATED RECALIBRATED RECATALOGUED REHYDRATABLE REINCARNATED REJONEADORAS RELANDSCAPED RELANDSCAPES REMAINDERMAN RERADIATIONS RETARDANCIES RETARDATIONS RETRANSLATED REVACCINATED REVALIDATING REVALIDATION RHABDOMANCER RIJKSDAALERS SACCHARIFIED SACERDOTALLY SADDLEBACKED SAFEGUARDING SAILBOARDERS SALAMANDRINE SALICYLAMIDE SALMAGUNDIES SANCTUARISED SANCTUARIZED SANDBLASTERS SANDPAPERIER SANDPAPERING SAPINDACEOUS SCABBARDLESS SCAFFOLDAGES SCALENOHEDRA SCANDALISERS SCANDALIZERS SCARABAEOIDS SCARAMOUCHED SCRAPERBOARD SEMIPALMATED SHADOWCASTED SHAMEFACEDLY SKATEBOARDED SKATEBOARDER SPEARHEADING SPREADEAGLED STANDARDBRED STANDARDISED STANDARDISER STANDARDISES STANDARDIZED STANDARDIZER STANDARDIZES STANDARDLESS STANDPATTERS STENOCARDIAS STOMATODAEUM STRADDLEBACK STRANGULATED SUBALLOCATED SUBDEACONATE SUBDIACONATE SUBSATURATED SULFADIAZINE SUPRAMUNDANE SYLLABICATED TARRADIDDLES TETRACHORDAL TETRADACTYLS TETRADACTYLY TETRADRACHMA TETRADRACHMS THEATERLANDS THEATRELANDS THREADBAREST THREADMAKERS TRABECULATED TRADEMARKING TRADESCANTIA TRANSLOCATED TRANSMUNDANE TRANSPLANTED TRAPEZOHEDRA TRIANGULATED TRIRADIATELY TRYPARSAMIDE ULTRAMUNDANE UNACCLIMATED UNACQUAINTED UNADULTERATE UNAFFILIATED UNAFFORDABLE UNALLEVIATED UNAPPARELLED UNAPPROACHED UNASCENDABLE UNASSOCIATED UNATTENUATED UNBARRICADED UNBARRICADES UNCALCULATED UNCALIBRATED UNCAPTIVATED UNCATALOGUED UNDEFEATABLE UNDEMARCATED UNDERTAKABLE UNDRAMATISED UNDRAMATIZED UNELABORATED UNHABITUATED UNIRRADIATED UNMAINTAINED UNPARALLELED UNPARDONABLE UNSCABBARDED UNSHADOWABLE UNTRANSLATED UNVACCINATED UNVARIEGATED VAGABONDAGES VAGABONDISED VAGABONDISES VAGABONDIZED VAGABONDIZES VALETUDINARY VASCULARISED VASCULARIZED VAUDEVILLEAN VAUDEVILLIAN VOCABULARIED WAKEBOARDERS WAKEBOARDING WALDGRAVINES WALLYDRAIGLE WEATHERBOARD WITHDRAWABLE ZANTEDESCHIA