There are 544 eleven-letter words containing A, B, D and R, https://www.bestwordlist.com/c/a/4/11letterwordswithabdr.htm ABANDONWARE ABBREVIATED ABECEDARIAN ABERDEVINES ABIRRITATED ABORTICIDES ABOVEGROUND ABRACADABRA ABRIDGEABLE ABRIDGEMENT ABRIDGMENTS ABSURDITIES ADDRESSABLE ADORABILITY ADUMBRATING ADUMBRATION ADUMBRATIVE ADVERBIALLY AEROBICISED AEROBICIZED AFTERBODIES AIRBOARDING AMBASSADORS AMBIDEXTERS AMBUSCADERS ARABINOSIDE ARQUEBUSADE BABYPROOFED BACHELORDOM BACKCROSSED BACKDRAUGHT BACKDROPPED BACKGROUNDS BACKHANDERS BACKSLIDERS BACKSPEERED BACKSPEIRED BACKSTROKED BACKTRACKED BACKVELDERS BACTERICIDE BACTERIOIDS BADDERLOCKS BADGERLIEST BALDERLOCKS BALLADEERED BALLYRAGGED BALUSTRADED BALUSTRADES BANDEIRANTE BANDERILLAS BANDLEADERS BANDMASTERS BANDOLEERED BANDOLIERED BARDOLATERS BAREFACEDLY BAREHANDING BARGEBOARDS BARNSTORMED BARRAMUNDAS BARRAMUNDIS BARRELHEADS BARRICADERS BARRICADING BARRICADOED BARRICADOES BARTENDINGS BASIDIOCARP BASTARDISED BASTARDISES BASTARDISMS BASTARDIZED BASTARDIZES BASTARDLIER BASTARDRIES BATTLEDOORS BATTLEDORES BATTLEDRESS BEADBLASTER BEADWORKERS BEARDEDNESS BEARDTONGUE BEAVERBOARD BECLAMOURED BECOWARDING BEDARKENING BEDCHAMBERS BEDIAPERING BEDRAGGLING BEGGARHOODS BEGGARWEEDS BEGLAMOURED BELEAGUERED BENCHMARKED BEPLASTERED BERDACHISMS BESCATTERED BESPATTERED BESPREADING BESTRADDLED BESTRADDLES BESTRIDABLE BICHROMATED BILLBOARDED BIODEGRADED BIODEGRADES BIOTURBATED BIPOLARISED BIPOLARIZED BIPYRAMIDAL BIQUADRATES BIQUADRATIC BIRDBRAINED BIRDWATCHED BIRDWATCHER BIRDWATCHES BLACKBIRDED BLACKBIRDER BLACKBOARDS BLACKGUARDS BLACKHANDER BLADDERIEST BLADDERLIKE BLADDERNOSE BLADDERNUTS BLADDERWORT BLANDISHERS BLASTODERMS BLIZZARDIER BLIZZARDING BLOCKBOARDS BLOODSTREAM BOARDSAILOR BOATBUILDER BODYBOARDED BODYBOARDER BODYGUARDED BODYSHAPERS BOMBARDIERS BOMBARDMENT BONDSERVANT BOOMERANGED BOOTLOADERS BORDERLANDS BORDRAGINGS BRACHIOPODS BRACHYDOMES BRACHYODONT BRADYCARDIA BRADYKININS BRADYPEPTIC BRADYSEISMS BRAGADISMES BRAGGADOCIO BRAINWASHED BRANCHIOPOD BRANDISHERS BRANDISHING BRAZILWOODS BREADBASKET BREADBOARDS BREADCRUMBS BREADFRUITS BREADKNIVES BREADSTICKS BREADSTUFFS BREADTHWAYS BREADTHWISE BREADWINNER BREAKDANCED BREAKDANCER BREAKDANCES BREAKFASTED BREASTFEEDS BRICKSHAPED BRIDEMAIDEN BRIDESMAIDS BRIDEWEALTH BRIDEZILLAS BRIDGEBOARD BRIDGEHEADS BRIGANDAGES BRIGANDINES BRIGANDRIES BRILLIANTED BROADCASTED BROADCASTER BROADCLOTHS BROADLEAVED BROADLEAVES BROADNESSES BROADPIECES BROADSHEETS BROADSIDING BROADSWORDS BUCCANEERED BUCCANIERED BUDGERIGARS BULLYRAGGED BURGLARISED BURGLARIZED BURRAMUNDIS BUTTERHEADS CANDELABRAS CANDELABRUM CANDLEBERRY CARBAMIDINE CARBONADOED CARBONADOES CARBONNADES CARBURETTED CENTERBOARD CENTREBOARD CHALKBOARDS CHALKBROODS CHAMBERHAND CHAMBERMAID CHARBROILED CHEESEBOARD CHESSBOARDS CLAPBOARDED CODEBREAKER CONTRABANDS CORNBRAIDED CRABBEDNESS CRISPBREADS CROOKBACKED CROSSBANDED CROSSBARRED CUPBOARDING CURVEBALLED DAGGERBOARD DEALBREAKER DEATTRIBUTE DEBARCATION DEBARKATION DEBARRASSED DEBARRASSES DECARBONATE DECARBONISE DECARBONIZE DECARBURISE DECARBURIZE DECEREBRATE DEFERRABLES DEFIBRINATE DEFLAGRABLE DELIBERATED DELIBERATES DELIBERATOR DELIVERABLE DENUMERABLE DENUMERABLY DEPRECIABLE DESCRAMBLED DESCRAMBLER DESCRAMBLES DESCRIBABLE DESTROYABLE DETRIBALISE DETRIBALIZE DEVERBATIVE DIATRIBISTS DISBARMENTS DISBRANCHED DISBRANCHES DISBURSABLE DISCARDABLE DISCERNABLE DISCERNABLY DISEMBARKED DISPROVABLE DISTURBANCE DISTURBANTS DITHYRAMBIC DIVORCEABLE DOLABRIFORM DOLLARBIRDS DORSOLUMBAR DRAINBOARDS DRAPABILITY DRAWBRIDGES DRIVABILITY DROMOPHOBIA DRUMBEATERS DRUMBEATING DUMBWAITERS DURABLENESS ELUCUBRATED EMBARCADERO EMBARRASSED EMBASSADORS EMBRYONATED EXACERBATED EXORBITATED EXPROBRATED FAUXBOURDON FEATHERBEDS FIBERBOARDS FIBREBOARDS FIBRILLATED FINGERBOARD FLASHBOARDS FLOORBOARDS FLORIBUNDAS FOOTBREADTH FORBIDDANCE GALLBLADDER GINGERBREAD GOATSBEARDS GOLDBEATERS GRADABILITY GRANDBABIES GRAYBEARDED GREASEBANDS GREYBEARDED GROUNDBAITS HABERDASHER HAIRBRAINED HAIRBREADTH HALBERDIERS HANDBALLERS HANDBARROWS HANDBREADTH HARBINGERED HARBOURSIDE HAREBRAINED HAWKSBEARDS HEADBANGERS HEADBOROUGH HEBDOMADARS HEBDOMADARY HEBDOMADERS HEREDITABLE HEREDITABLY HOVERBOARDS HUDIBRASTIC HUSBANDLIER HUSBANDRIES HYBRIDOMATA HYDROCARBON HYDROPHOBIA INTURBIDATE IRRADICABLE IRRADICABLY KEYBOARDERS KEYBOARDING KEYBOARDIST KNEEBOARDED LABOREDNESS LABRADOODLE LABRADORITE LADDERBACKS LAMEBRAINED LANDLUBBERS LAVERBREADS LEADERBOARD LIBERALISED LIBERALIZED LINERBOARDS LIQUIDAMBAR LUMBERYARDS MACERANDUBA MARBLEWOODS MASTURBATED MATCHBOARDS MISBRANDING MISLABOURED MOORBUZZARD MORBIDEZZAS MORTARBOARD MOTHERBOARD MOTORBOATED MOULDBOARDS MURDERBALLS NARROWBANDS NONDURABLES NOTICEBOARD NUDIBRANCHS OBDURATIONS OBLITERATED OBSIDIONARY OBTRUNCATED ONBOARDINGS ORBICULATED OUTBRAZENED OUTBREATHED OVERABOUNDS OVERLABORED PADDLEBOARD PAEDOTRIBES PALPEBRATED PAPERBACKED PAPERBOARDS PAPERBOUNDS PARABOLISED PARABOLIZED PARABOLOIDS PASTEBOARDS PATCHBOARDS PERSUADABLE PERTURBATED PLUNDERABLE PONDERABLES PREABSORBED PREBOARDING PRECLUDABLE PREDIABETES PREDIABETIC PREDICABLES PREDICTABLE PREDICTABLY PREOBTAINED PRESSBOARDS PROTRUDABLE PUNCHBOARDS RABIDNESSES RADIOCARBON RADIOLABELS READABILITY REASSEMBLED REBRANDINGS REBROADCAST REDOUBTABLE REDOUBTABLY REDRESSABLE REINHABITED REKEYBOARDS RESCINDABLE RHABDOCOELE RHABDOLITHS RHABDOMANCY RHABDOMERES RHABDOMYOMA RHABDOVIRUS RHOMBOHEDRA ROADABILITY ROADBLOCKED ROLLERBLADE ROUNDABOUTS ROUNDTABLES SADDLEBREDS SAILBOARDED SAILBOARDER SANDBAGGERS SANDBLASTER SCABBARDING SCALEBOARDS SCARABAEIDS SCARABAEOID SCOREBOARDS SCRAPBOOKED SCRIVEBOARD SHADBERRIES SHARPBENDER SHORTBOARDS SHORTBREADS SHOVELBOARD SKATEBOARDS SKIMBOARDED SKIMBOARDER SLUMBERLAND SMOKEBOARDS SMORGASBORD SNOWBLADERS SNOWBOARDED SNOWBOARDER SOLDERABLES SOUNDBOARDS SPLASHBOARD SPRINGBOARD STARBOARDED STERNBOARDS STORYBOARDS STRAWBOARDS STRINGBOARD STROBILATED SUBAHDARIES SUBCARDINAL SUBDEACONRY SUBDERMALLY SUBORDINARY SUBORDINATE SUBSTANDARD SUBSTRACTED SUBTRAHENDS SUPERABOUND SUPERBOARDS SURFBOARDED SURFBOARDER SURTARBRAND SURTURBRAND SWEETBREADS SWITCHBOARD SWORDBEARER TABERNACLED TABULARISED TABULARIZED TAILORBIRDS TARBOGGINED TEETERBOARD THREADBARER TIMBERHEADS TIMBERLANDS TIMBERYARDS TRANSBORDER TRANSCRIBED TROUBADOURS UNABROGATED UNBARRICADE UNBIRTHDAYS UNBRACKETED UNDERBAKING UNDERBEARER UNDERBREATH UNDESIRABLE UNDESIRABLY UNDRAINABLE UNDRINKABLE UNDRIVEABLE UNENDURABLE UNENDURABLY UNHARBOURED UNLIBERATED UNSCABBARDS UNSCRAMBLED UNTRADEABLE UPBRAIDINGS UPGRADEABLE VERGEBOARDS VERTEBRATED VIBRACULOID WAFERBOARDS WAKEBOARDED WAKEBOARDER WALDSTERBEN WATTLEBIRDS WEAVERBIRDS WEIGHBOARDS WHITEBEARDS WHITEBOARDS WINDBAGGERY WINDBREAKER