There are 749 twelve-letter words containing A, L and 2R, https://www.bestwordlist.com/c/a/4/12letterwordswithalrr.htm
ABERRATIONAL ACCELERATORS ACCELERATORY ACHLORHYDRIA ACHLORHYDRIC
ADULTERATORS ADVERTORIALS AGRICULTURAL AGRICULTURES ALDERMANLIER
ALDERMANRIES ALLEGORISERS ALLEGORIZERS ALSTROEMERIA AMELIORATORS
AMELIORATORY ANARTHROUSLY ANGLEBERRIES ANTIBURGLARY ANTILITERARY
APPROPRIABLE ARCHESPORIAL ARTERIALISED ARTERIALISES ARTERIALIZED
ARTERIALIZES ARTHROPLASTY ARTICULATORS ARTICULATORY ARTILLERISTS
ARTILLERYMAN ARTILLERYMEN ASTROLATRIES BALLBREAKERS BALLCARRIERS
BANDERILLERO BARBARICALLY BARDOLATRIES BARDOLATROUS BAROMETRICAL
BARRATROUSLY BARRELHOUSES BARRETROUSLY BARRISTERIAL BICARPELLARY
BLACKBERRIED BLACKBERRIES BLACKBIRDERS BLACKCURRANT BLADDERWORTS
BLADDERWRACK BLENNORRHEAS BLENNORRHOEA BOARDSAILORS BOILERMAKERS
BOULEVARDIER BRAGGARTLIER BREATHALYSER BREATHALYZER BREECHLOADER
BROMOURACILS BROOMBALLERS BUFFALOBERRY BURGLARISING BURGLARIZING
BURGLARPROOF CALLIGRAPHER CALORIMETERS CALORIMETRIC CARILLONNEUR
CARRIAGEABLE CARTWHEELERS CATERPILLARS CATERWAULERS CENTRALISERS
CENTRALIZERS CEREBRALISMS CEREBRALISTS CHARACTERFUL CHARBROILERS
CHARBROILING CHARGRILLING CHARTULARIES CHEERLEADERS CHLORINATORS
CIRCULARISED CIRCULARISER CIRCULARISES CIRCULARIZED CIRCULARIZER
CIRCULARIZES CIRCULARNESS CLAPPERBOARD CLAPTRAPPERY CLEARSTORIED
CLEARSTORIES COCURRICULAR COELUROSAURS COLEORRHIZAE COLLABORATOR
CONFRATERNAL CONTRACTURAL CORALBERRIES CORPORALSHIP CORPOREALISE
CORPOREALISM CORPOREALIST CORPOREALITY CORPOREALIZE CORRECTIONAL
CORRELATABLE CORRELATIONS CORRELATIVES CORRIVALLING CORRIVALRIES
CORRIVALSHIP CORROBORABLE COUNTERRALLY CRACKLEWARES CRANIOSACRAL
CREMAILLERES CRIPPLEWARES CRYOSURGICAL CRYSTALISERS CRYSTALIZERS
CRYSTALLISER CRYSTALLIZER CURVIROSTRAL CYBERSTALKER DAREDEVILTRY
DAUGHTERLIER DEALBREAKERS DECELERATORS DEERSTALKERS DEFLAGRATORS
DELIBERATORS DEMORALISERS DEMORALIZERS DENTIROSTRAL DEPOLARISERS
DEPOLARIZERS DEREGULATORS DEREGULATORY DEROGATORILY DESCRAMBLERS
DIARTHRODIAL DICARPELLARY DIMERCAPROLS DISREGARDFUL DIVERTICULAR
DOLLAROCRACY DORSIVENTRAL DORSOLATERAL DORSOVENTRAL DRILLMASTERS
DRUMBLEDRANE DRYSALTERIES EARLIERISING EARLIERIZING EDULCORATORS
ELECTROGRAMS ELECTROGRAPH ELECTROPOLAR ELEUTHERARCH ENARTHRODIAL
EQUILIBRATOR ERYTHROBLAST EUROTERMINAL EXHILARATORS EXHILARATORY
EXPROPRIABLE EXTRACRANIAL EXTRAMARITAL EXTRAMURALLY EXTRANUCLEAR
EXTRAPOLATOR FAMILIARISER FAMILIARIZER FARNARKELING FISSIROSTRAL
FLAMEPROOFER FLAMETHROWER FLASHFORWARD FLOORWALKERS FLUOROCARBON
FLUOROGRAPHY FLUOROURACIL FLUTTERBOARD FORBEARINGLY FOREFATHERLY
FORESTALLERS FORETRIANGLE FORMULARISED FORMULARISER FORMULARISES
FORMULARIZED FORMULARIZER FORMULARIZES FOURSQUARELY FRATERNALISM
FRITILLARIAS FRITILLARIES GALACTORRHEA GALLERYGOERS GASTROLOGERS
GENERALISERS GENERALIZERS GLASSWORKERS GOLIARDERIES GORILLAGRAMS
GRALLATORIAL GRANDIFLORAS GREENMAILERS GREGARIOUSLY GRIDDLEBREAD
GROSSULARITE GUBERNACULAR GUERRILLAISM HAIRSPLITTER HALTERBREAKS
HALTERBROKEN HARDSCRABBLE HELIOGRAPHER HELIOGRAVURE HEMORRHOIDAL
HEREDITARILY HETEROCERCAL HIERARCHICAL HIEROLATRIES HOLOGRAPHERS
HOROMETRICAL HORRIFICALLY HORRIPILATED HORRIPILATES HORSEPLAYERS
HYDROTHERMAL HYPERAROUSAL HYPERREALISM HYPERREALIST HYPERREALITY
HYPERTHERMAL IDOLATRISERS IDOLATRIZERS ILLUSTRATORS ILLUSTRATORY
IMMORTALISER IMMORTALIZER IMPERATORIAL IMPERFORABLE INCORPORABLE
INERRABILITY INFILTRATORS INFRAORBITAL INTERDEALERS INTERFEMORAL
INTERFRONTAL INTERLAMINAR INTERLARDING INTERLAYERED INTERLIBRARY
INTERLINEARS INTERLOBULAR INTERNUCLEAR INTERORBITAL INTERPLEADER
INTERPLEURAL INTERPOLATER INTERPOLATOR INTERRACIALS INTERRAILERS
INTERRAILING INTERRELATED INTERRELATES INTERROGABLE INTERSPERSAL
INTERSTELLAR INTRACARDIAL INTRACRANIAL INTRAMURALLY INTRANUCLEAR
IRRATIONALLY IRREALISABLE IRREALIZABLE IRREBUTTABLE IRRECIPROCAL
IRREDEEMABLE IRREDEEMABLY IRREFORMABLE IRREFORMABLY IRREFRAGABLE
IRREFRAGABLY IRREGARDLESS IRREGULARITY IRRELATIVELY IRRELEVANCES
IRRELEVANTLY IRRELIEVABLE IRREMEDIABLE IRREMEDIABLY IRREPAIRABLE
IRREPEALABLE IRREPEALABLY IRREPROVABLE IRREPROVABLY IRRESISTABLE
IRRESISTABLY IRRESOLVABLE IRRESOLVABLY IRRESPIRABLE IRRIGATIONAL
IRRITABILITY IRRITATINGLY IRROTATIONAL JAILBREAKERS JOURNALISERS
JOURNALIZERS LABORATORIES LABRADORITES LACHRYMARIES LACHRYMATORS
LACHRYMATORY LACQUERWARES LACQUERWORKS LAMMERGEIERS LAMMERGEYERS
LAMPROPHYRES LAMPROPHYRIC LARGEHEARTED LARRIKINISMS LATIROSTRATE
LEADERBOARDS LEATHERWORKS LEISUREWEARS LEPROSARIUMS LEUCORRHOEAL
LEUCORRHOEAS LEVOROTATORY LIBERALISERS LIBERALIZERS LIBERTARIANS
LITERALISERS LITERALIZERS LITERARINESS LITERARYISMS LITHOGRAPHER
LITTERATEURS LOGANBERRIES LOGOGRAPHERS LONGIROSTRAL LORDOLATRIES
MACRONUCLEAR MARICULTURES MARPRELATING MARRIAGEABLE MARSHLANDERS
MARTYROLOGIC MATERIALISER MATERIALIZER MATRICULATOR MEMORIALISER
MEMORIALIZER MERCURIALISE MERCURIALISM MERCURIALIST MERCURIALITY
MERCURIALIZE METALWORKERS MICROCRYSTAL MICROFILARIA MICROTUBULAR
MINERALISERS MINERALIZERS MITRAILLEURS MULTIBARRELS MURDERABILIA
MYOFIBRILLAR NEANDERTALER NECROLATRIES NEUROHUMORAL NEUTRALISERS
NEUTRALIZERS NONLIBRARIAN NONLIBRARIES NONMERCURIAL NONRAILROADS
NORADRENALIN OBLITERATORS OLALLIEBERRY OLEOMARGARIN OPERATORLESS
ORACULARNESS ORATORICALLY ORBICULARITY ORCHESTRALLY OROGRAPHICAL
OROMAXILLARY OVERAROUSALS OVERCLEARING OVERCRITICAL OVERFAMILIAR
OVERLABORING OVERLABOURED OVERLEARNING OVERLEATHERS OVERLITERARY
OVERREGULATE OVERRELIANCE PALEOGRAPHER PARAMETRICAL PARAMILITARY
PARANORMALLY PARAPLANNERS PARENTERALLY PARLOURMAIDS PARTICOLORED
PARTICULARLY PERAMBULATOR PERCHLORATES PERICHONDRAL PERIMETRICAL
PERIPHERALLY PERIPHERICAL PERLUSTRATED PERLUSTRATES PERMACULTURE
PERORATIONAL PETRODOLLARS PHILANDERERS PILGRIMAGERS PLAGIARISERS
PLAGIARIZERS PLASTERBOARD PLASTERWORKS PLATYRRHINES PLEROPHORIAS
PLURILITERAL PLURILOCULAR PLURISERIATE POLARIMETERS POLARIMETRIC
POLAROGRAPHS POLAROGRAPHY POLYGRAPHERS POPULARISERS POPULARIZERS
PRALLTRILLER PRAYERLESSLY PREAMPLIFIER PREAPPROVALS PRECARIOUSLY
PRECENTORIAL PRECEPTORIAL PRECLEARANCE PRECONCILIAR PREDOCTORALS
PREFECTORIAL PREFERENTIAL PREFLORATION PREFORMULATE PREHENSORIAL
PREINAUGURAL PRELAPSARIAN PRELITERATES PREMARITALLY PREMAXILLARY
PREMENSTRUAL PREOVULATORY PREREHEARSAL PRERELEASING PRESBYTERIAL
PRESLAUGHTER PRIMORDIALLY PROCATHEDRAL PROCEDURALLY PROCELLARIAN
PROCLAMATORY PROCTORIALLY PROFESSORIAL PROGRAMMABLE PROLETARIANS
PROLETARIATE PROLETARIATS PROLIFERATED PROLIFERATES PROMULGATORS
PROPORTIONAL PROPRANOLOLS PROSECTORIAL PROTECTORIAL PROTRACTEDLY
PROTRACTIBLE PROTREPTICAL PROVERBIALLY PURPLEHEARTS PYRITOHEDRAL
PYROMETRICAL PYRRHULOXIAS QUADRANGULAR QUARRELLINGS QUARTERFINAL
QUARTERLIGHT RADIOLARIANS RAILROADINGS RALLYCROSSES RATHSKELLERS
RATIONALISER RATIONALIZER RATTLEBRAINS REACCELERATE REAPPARELING
REAPPARELLED REAPPRAISALS REARTICULATE REASSURINGLY RECALCITRANT
RECALCITRATE RECALIBRATED RECALIBRATES RECENTRALIZE RECEPTACULAR
RECHARGEABLE RECIPROCALLY RECIRCULATED RECIRCULATES RECREATIONAL
RECREATIVELY RECTIROSTRAL REFLATIONARY REFLECTOGRAM REFORMULATED
REFORMULATES REFRACTIVELY REFRACTORILY REGARDLESSLY REGENERATELY
REGISTERABLE REGULARISING REGULARITIES REGULARIZING REHYDRATABLE
REIMBURSABLE REITERATEDLY RELACQUERING RELAUNDERING RELUBRICATED
RELUBRICATES REMEMBERABLE REMEMBERABLY REMILITARISE REMILITARIZE
REMINERALISE REMINERALIZE REMORALISING REMORALIZING RENORMALISED
RENORMALISES RENORMALIZED RENORMALIZES RENOVASCULAR REPARABILITY
REPLASTERING REPOLARISING REPOLARIZING REPOPULARISE REPOPULARIZE
REPROACHABLE REPROACHABLY REPROACHLESS REREGULATING REREGULATION
RESEARCHABLE RESPONSORIAL RESTRAINABLE RESTRAINEDLY RESVERATROLS
RETRACTILITY RETRACTIVELY RETRANSLATED RETRANSLATES RETRENCHABLE
RETROGRADELY RETROPHILIAC RETROPHILIAS RETROSEXUALS REVALORISING
REVALORIZING REVULSIONARY RHEOMETRICAL RHETORICALLY RHINOCERICAL
RHINORRHOEAL RHOMBOHEDRAL RHOPALOCERAL RIJKSDAALERS ROLLERBLADED
ROLLERBLADER ROLLERBLADES RURALISATION RURALIZATION SAILBOARDERS
SARSAPARILLA SCALDBERRIES SCLERODERMAS SCLERODERMIA SCRIPTURALLY
SCROPHULARIA SECULARISERS SECULARIZERS SEMIARBOREAL SEMICIRCULAR
SEMITRAILERS SERICULTURAL SERRULATIONS SERTULARIANS SHAREHOLDERS
SHAREMILKERS SHELLCRACKER SIALORRHOEAS SINISTRORSAL SLATTERNLIER
SLAUGHTERERS SLUGGARDLIER SOLARIMETERS SPARKLEBERRY SQUIREARCHAL
STEAMROLLERS STELLARATORS STRAWFLOWERS STREAMLINERS STREETWALKER
STRIDULATORS STRIDULATORY STRUCTURALLY SUBAURICULAR SUBLIBRARIAN
SUBOPERCULAR SUBORBICULAR SUBUMBRELLAR SUBVERTEBRAL SULPHURATORS
SUPERALTERNS SUPERCILIARY SUPERFRONTAL SUPERHUMERAL SUPERLAWYERS
SUPERNACULAR SUPERNATURAL SUPERORDINAL SUPERPLAYERS SUPERREALISM
SUPERREALIST SUPRACILIARY SUPRACRUSTAL SUPRAORBITAL SURREALISTIC
SURREALITIES SURREBUTTALS SWORDPLAYERS TABERNACULAR TARRADIDDLES
TELEGRAPHERS TELEMARKETER TENUIROSTRAL TEREBRATULAE TEREBRATULAS
TERRESTRIALS TERRIFICALLY TERRITORIALS TETRACHORDAL TETRAPYRROLE
TETRARCHICAL TORRENTIALLY TRACKERBALLS TRACKWALKERS TRAILBLAZERS
TRAILBREAKER TRAITOROUSLY TRAMPOLINERS TRANQUILISER TRANQUILIZER
TRANSCRANIAL TRANSFERABLE TRANSFERRALS TRANSITORILY TRANSNATURAL
TRANSPIRABLE TRANSPLANTER TRANSPORTALS TRANSVALUERS TRANSVERSALS
TRANSVERSELY TREASURELESS TRIANGULARLY TRIFLURALINS TRILATERALLY
TRILLIONAIRE TRIMOLECULAR TRIPARTITELY TRIRADIATELY TROCHANTERAL
TROUBLEMAKER TUBERCULARLY TURBELLARIAN TURRICULATED ULTRACAREFUL
ULTRAFILTERS ULTRAHEAVIER ULTRALIBERAL ULTRAMARINES ULTRAPRECISE
ULTRARADICAL ULTRAREALISM ULTRAREALIST ULTRAREFINED ULTRASERIOUS
ULTRAVIRUSES UNCORRELATED UNDERVALUERS UNFATHERLIER UNMANNERLIER
UNPREPAREDLY UNPROCEDURAL UNPROCURABLE UNREFORMABLE UNREMARKABLE
UNREMARKABLY UNREPAIRABLE UNREPORTABLE UNREPROVABLE UNRETURNABLE
UNREWARDEDLY UNRHETORICAL UNSCRAMBLERS UNSCRIPTURAL UPROARIOUSLY
UTRICULARIAS VARICOLOURED VELOCIRAPTOR VERMICULARLY VERNACULARLY
VIBRACULARIA WATERCOLOURS WATERCOOLERS WATERFOWLERS WEATHERGIRLS
WHEELBARROWS WOOLGATHERER WRANGLERSHIP XYLOGRAPHERS