There are 659 twelve-letter words containing A, B, E, I and T, https://www.bestwordlist.com/c/a/5/12letterwordswithabeit.htm
ABBREVIATING ABBREVIATION ABBREVIATORS ABBREVIATORY ABBREVIATURE
ABERRATIONAL ABIOTROPHIES ABOLISHMENTS ABORTIVENESS ABRIDGEMENTS
ABSENTEEISMS ABSENTMINDED ABSINTHIATED ABSTEMIOUSLY ABSTINENCIES
ABSTRACTIVES ABSTRUSITIES ACCLIMATABLE ACCREDITABLE ACTABILITIES
AFFABILITIES AFTERBURNING AGGLUTINABLE AGREEABILITY ALEMBICATION
ALIENABILITY ALPHABETICAL ALPHABETISED ALPHABETISER ALPHABETISES
ALPHABETIZED ALPHABETIZER ALPHABETIZES ALTERABILITY AMBIDEXTROUS
AMBITIONLESS AMBIVALENTLY AMBLYGONITES AMBULATORIES AMETABOLISMS
AMIABILITIES AMINOBUTENES AMPHIBOLITES ANAEROBIONTS ANAEROBIOTIC
ANALPHABETIC ANNABERGITES ANTIBUSINESS ANTIDIABETIC ANTIFEBRILES
ANTILIBERALS ANTIMETABOLE ARBITRAGEURS ARBITRAMENTS ARBITREMENTS
ASSEMBLAGIST ATTRIBUTABLE ATTRIBUTIVES AUDIBILITIES AUTHORISABLE
AUTHORIZABLE BABINGTONITE BACKSTITCHED BACKSTITCHES BACTERAEMIAS
BACTERICIDAL BACTERICIDES BACTERIOCIDE BACTERIOCINS BACTERIOLOGY
BACTERIOSTAT BACTERIURIAS BADDELEYITES BALLETICALLY BALLETOMANIA
BALLICATTERS BALNEOLOGIST BANDEIRANTES BANKRUPTCIES BANTAMWEIGHT
BAPTISTERIES BARAESTHESIA BARBITURATES BARDOLATRIES BAREBOATINGS
BARESTHESIAS BAROMETRICAL BARQUANTINES BARQUENTINES BARRISTERIAL
BASTARDLIEST BASTNAESITES BATHETICALLY BATHOMETRIES BATHYMETRIES
BATHYPELAGIC BATTLEFIELDS BATTLEPIECES BEADBLASTING BEARBAITINGS
BEATIFICALLY BEAUTIFULLER BEETLEBRAINS BEHAVIORISTS BEHAVIOURIST
BENEFACTIONS BENEFICIATED BENEFICIATES BEPLASTERING BERTILLONAGE
BESCATTERING BESPATTERING BESTIALISING BESTIALITIES BESTIALIZING
BESTRADDLING BETWEENBRAIN BIAURICULATE BIBLIOLATERS BIBLIOTHECAE
BIBLIOTHECAL BIBLIOTHECAS BICAMERALIST BICARBONATES BICENTENNIAL
BICOLLATERAL BICUSPIDATES BIFLAGELLATE BIGHEARTEDLY BILATERALISM
BILLINGSGATE BIMESTRIALLY BIMETALLISMS BIMETALLISTS BIMODALITIES
BIOAERATIONS BIOCATALYSES BIOGENETICAL BIOIDENTICAL BIOMAGNETICS
BIOMATERIALS BIOMETRICIAN BIOSATELLITE BIOTECHNICAL BIPARENTALLY
BIPEDALITIES BIPOLARITIES BIPROPELLANT BIRDWATCHERS BITONALITIES
BLACKLISTERS BLANDISHMENT BLASTOCOELIC BLASTODERMIC BLATHERSKITE
BLEACHERITES BLETHERATION BLIZZARDIEST BLOODSTAINED BOATBUILDERS
BOILERPLATED BOILERPLATES BOROSILICATE BOTHERATIONS BRADYPEPTICS
BRAGGARTLIER BRAINSTORMED BRAINSTORMER BRAINTEASERS BRATTINESSES
BREAKFASTING BREATHARIANS BREATHTAKING BRECCIATIONS BREVIPENNATE
BRIDEWEALTHS BRILLIANTINE BRISTLETAILS BROWBEATINGS BUREAUCRATIC
CABINETMAKER CABINETWORKS CABLECASTING CANTERBURIES CAPABILITIES
CARBONATITES CARBURETIONS CARBURETTING CELEBRATIONS CELEBREALITY
CELIBATARIAN CEREBRALISTS CEREBRATIONS CEREBROTONIA CIRCULATABLE
CLEANABILITY CLEAVABILITY COENOBITICAL CONTAMINABLE CONTRACTIBLE
CRISTOBALITE CRITICISABLE CRITICIZABLE CULTIVATABLE CURABILITIES
CUSTOMISABLE CUSTOMIZABLE CUTABILITIES CYBERNATIONS CYBERNETICAL
DEATTRIBUTED DEATTRIBUTES DEBARCATIONS DEBARKATIONS DEBILITATING
DEBILITATION DEBILITATIVE DECIDABILITY DEFIBRILLATE DEFIBRINATED
DEFIBRINATES DEFINABILITY DELIBERATELY DELIBERATING DELIBERATION
DELIBERATIVE DELIBERATORS DEMIBASTIONS DESIRABILITY DESTABILISED
DESTABILISER DESTABILISES DESTABILIZED DESTABILIZER DESTABILIZES
DETERMINABLE DETERMINABLY DETONABILITY DETRIBALISED DETRIBALISES
DETRIBALIZED DETRIBALIZES DEVERBATIVES DIABETOGENIC DIBASICITIES
DIBRANCHIATE DISABILITIES DISABLEMENTS DISAMBIGUATE DISBANDMENTS
DISCOUNTABLE DISESTABLISH DISMOUNTABLE DISREPUTABLE DISREPUTABLY
DISTRACTABLE DISTRACTIBLE DISTRAINABLE DISTURBANCES DISTURBATIVE
DOMESTICABLE DRAMATISABLE DRAMATIZABLE DRAPEABILITY DRIVEABILITY
DRUMBEATINGS DUBITATIVELY DUPABILITIES DURABILITIES DYEABILITIES
ELABORATIONS ELECTABILITY ELUCUBRATING ELUCUBRATION EMBARCATIONS
EMBARKATIONS EMBLEMATICAL EMBLEMATISED EMBLEMATISES EMBLEMATISTS
EMBLEMATIZED EMBLEMATIZES EMBOLISATION EMBOLIZATION EMBROCATIONS
EMETOPHOBIAS ENDURABILITY ENSILABILITY ENTEROBIASES ENTEROBIASIS
EQUABILITIES EQUATABILITY EQUILIBRANTS EQUILIBRATED EQUILIBRATES
EQUILIBRATOR EQUITABILITY EROTOPHOBIAS ESTABLISHERS ESTABLISHING
EXACERBATING EXACERBATION EXCITABILITY EXORBITANCES EXORBITANTLY
EXORBITATING EXPROBRATING EXPROBRATION EXPROBRATIVE EXTERMINABLE
EXTRADITABLE FABULOSITIES FEATHERBRAIN FEBRIFACIENT FERTILISABLE
FERTILIZABLE FIBERISATION FIBERIZATION FLABELLATION FORGEABILITY
FRIABILITIES GEOBOTANICAL GEOBOTANISTS GROUNDBAITED GUBERNATIONS
HABITUALNESS HAIRBREADTHS HAIRSBREADTH HEARTBURNING HEATHBERRIES
HEBRAISATION HEBRAIZATION HERITABILITY HEXOBARBITAL HIBERNATIONS
HOMOBLASTIES HUSBANDLIEST HYPNOTISABLE HYPNOTIZABLE IDENTIFIABLE
IDENTIFIABLY ILLIBERALITY IMITABLENESS IMPENETRABLE IMPENETRABLY
INABSTINENCE INCHARITABLE INCOMMUTABLE INCOMPATIBLE INCOMPUTABLE
INDETECTABLE INDISPUTABLE INEBRIATIONS INEFFABILITY INELABORATED
INELABORATES INERRABILITY INEXECUTABLE INEXTIRPABLE INEXTRICABLE
INEXTRICABLY INHABITANCES INHOSPITABLE INTERLIBRARY INTERLOBULAR
INTERMINABLE INTERMINABLY INTERORBITAL INTERPOLABLE INTERPOSABLE
INTERROBANGS INTERROGABLE INTURBIDATED INTURBIDATES INURBANITIES
INVERTEBRATE INVESTIGABLE IRREBUTTABLE IRRESISTABLE IRRESISTABLY
ISOBILATERAL JETTISONABLE KEYBOARDISTS KITEBOARDING LABEFACTIONS
LABIODENTALS LABORATORIES LABRADORITES LABYRINTHINE LACERABILITY
LANGBEINITES LEACHABILITY LEARNABILITY LIBERALISTIC LIBERALITIES
LIBERTARIANS LIBERTICIDAL LIBERTINAGES LIKABILITIES LIVABILITIES
LOVABILITIES MAGNETISABLE MAGNETIZABLE MAINTAINABLE MALLEABILITY
MANDIBULATED MANDIBULATES MANIFESTABLE MANIFESTIBLE MEMORABILITY
METABOLISING METABOLIZING METABOLOMICS METABOTROPIC MILLILAMBERT
MISATTRIBUTE MISBESTOWALS MISERABILIST MISERABLISTS MIXABILITIES
MOVABILITIES MULTIBARRELS MULTICHAMBER MULTIPLIABLE MUTABILITIES
MYCOBACTERIA MYELOBLASTIC NEBULISATION NEBULIZATION NONBACTERIAL
NONBREATHING NONCOMBATIVE NONDIABETICS NOTABILITIES NOTICEBOARDS
NUMERABILITY OBEDIENTIARY OBJECTIVATED OBJECTIVATES OBLITERATING
OBLITERATION OBLITERATIVE OBLITERATORS OBSECRATIONS OBSERVATIONS
OBSTETRICIAN OBTESTATIONS OSTEOBLASTIC OSTRACISABLE OSTRACIZABLE
OUTBARGAINED OUTBRAZENING OUTBREATHING PAEDOBAPTISM PAEDOBAPTIST
PAINTBRUSHES PALEOBOTANIC PALPEBRATING PARTICIPABLE PATHBREAKING
PERMEABILITY PERTURBATING PERTURBATION PERTURBATIVE PITIABLENESS
PLEBISCITARY PLIABILITIES POTABILITIES POWERBOATING PRECIPITABLE
PREDIABETICS PREESTABLISH PREFABRICATE PREGNABILITY PRELIBATIONS
PREOBTAINING PRESBYTERIAL PRESBYTERIAN PROBATIONERS PROBLEMATICS
PROBLEMATIZE PROTRACTIBLE PROVEABILITY QUANTIFIABLE QUESTIONABLE
QUESTIONABLY RABBITBUSHES RABBITFISHES RAMBOUILLETS RATABILITIES
RATBAGGERIES RATTLEBRAINS REABSORPTION REATTRIBUTED REATTRIBUTES
RECALIBRATED RECALIBRATES RECOMBINANTS REFUTABILITY REGISTERABLE
REHABILITANT REHABILITATE REINHABITING RELATABILITY RELUBRICATED
RELUBRICATES REMOVABILITY RENEGOTIABLE RENEWABILITY REPARABILITY
REPROBATIONS REPUTABILITY RESTABILISED RESTABILISES RESTABILIZED
RESTABILIZES RESTRAINABLE RESUSCITABLE REVIVABILITY REVOCABILITY
REVOKABILITY RIDABILITIES RUBEFACIENTS RUBEFACTIONS SABERMETRICS
SABULOSITIES SALABILITIES SANCTIFIABLE SANCTIONABLE SCABRIDITIES
SCARABAEISTS SCATTERBRAIN SCROBICULATE SECOBARBITAL SEDIMENTABLE
SEMIABSTRACT SEMIBASEMENT SEPARABILITY SEVERABILITY SEWABILITIES
SHAREABILITY SORBEFACIENT SPEEDBOATING STABLISHMENT STERILISABLE
STERILIZABLE STICKLEBACKS STICKYBEAKED STRABISMUSES STRABOTOMIES
STRAIGHTBRED STRAWBERRIES SUBACIDITIES SUBALTERNITY SUBCELESTIAL
SUBDIACONATE SUBDUPLICATE SUBEDITORIAL SUBERISATION SUBERIZATION
SUBFACULTIES SUBFEUDATION SUBINDICATED SUBINDICATES SUBINFEUDATE
SUBINTERVALS SUBIRRIGATED SUBIRRIGATES SUBLINEATION SUBLITERATES
SUBMINIATURE SUBORDINATED SUBORDINATES SUBSATELLITE SUBSPECIALTY
SUBSTANTIATE SUBSTANTIVES SUBTENANCIES SUBURBANITES SUBVARIETIES
SUEABILITIES SUITABLENESS SUPERABILITY SUPERCABINET SWITCHBACKED
SWITCHBLADES SYLLABICATED SYLLABICATES TABEFACTIONS TABERNACLING
TALEBEARINGS TAMABILITIES TANGIBLENESS TAPHEPHOBIAS TAXABILITIES
TEACHABILITY TECHNOPHOBIA TECTIBRANCHS TELEBANKINGS TEMPTABILITY
TENABILITIES TERATOPHOBIA TERBUTALINES TEREBRATIONS THEOPHOBIACS
THERMOLABILE TIBIOFIBULAE TIMETABLINGS TOLBUTAMIDES TOLERABILITY
TRACEABILITY TRAILBLAZERS TRAILBREAKER TRAINBEARERS TRANSCRIBERS
TRANSFUSIBLE TRANSPIRABLE TREATABILITY TRISYLLABLES TROMBIDIASES
TUBOCURARINE TUBOPLASTIES TUBULARITIES TUNABILITIES TURBELLARIAN
ULTRALIBERAL UNAMBIVALENT UNATTAINABLE UNATTRIBUTED UNCALIBRATED
UNCHARITABLE UNCREDITABLE UNCULTIVABLE UNDELIBERATE UNDISPUTABLE
UNFILTERABLE UNHABITUATED UNHOSPITABLE UNINHABITEDS UNLISTENABLE
UNMISTAKABLE UNNEGOTIABLE UNNOTICEABLE UNNOTICEABLY UNOBTAINABLE
UNPROFITABLE UNSUBLIMATED UNTENABILITY USEABILITIES VEGETABLIEST
VENERABILITY VERBERATIONS VERBIGERATED VERBIGERATES VERTEBRATION
VIBRATIUNCLE VINBLASTINES WITHDRAWABLE ZALCITABINES