There are 681 twelve-letter words containing 2A and 2R, https://www.bestwordlist.com/c/a/4/12letterwordswithaarr.htm
ABBREVIATORS ABBREVIATORY ABBREVIATURE ABERRATIONAL ABIRRITATING
ABRACADABRAS ACCELERATORS ACCELERATORY ACCRETIONARY ACHLORHYDRIA
ADULTERATORS ADVERTORIALS AEROBRAKINGS AEROGRAPHIES AFTERGRASSES
AFTERMARKETS AFTERPARTIES AGGRANDISERS AGGRANDIZERS AGRARIANISMS
AGRICULTURAL AIRBOARDINGS AIRCRAFTSMAN AIRCRAFTSMEN ALDERMANLIER
ALDERMANRIES ALSTROEMERIA AMELIORATORS AMELIORATORY AMENORRHOEAS
ANARTHROUSLY ANIMADVERTER ANTARTHRITIC ANTIAIRCRAFT ANTIBARBARUS
ANTIBURGLARY ANTILITERARY ANTIPREDATOR AORTOGRAPHIC APPRECIATORS
APPRECIATORY APPROPRIABLE APPROPRIATED APPROPRIATES APPROPRIATOR
ARAEOMETRIES ARBITRAGEURS ARBITRAMENTS ARBITRATIONS ARBORISATION
ARBORIZATION ARCHAEOMETRY ARCHDEACONRY ARCHESPORIAL ARCHOSAURIAN
ARENAVIRUSES AREOGRAPHIES ARISTOCRATIC ARMAMENTARIA AROMATHERAPY
ARRAIGNMENTS ARRANGEMENTS ARRESTATIONS ARROWGRASSES ARTERIALISED
ARTERIALISES ARTERIALIZED ARTERIALIZES ARTERIOGRAMS ARTHROGRAPHY
ARTHROPLASTY ARTICULATORS ARTICULATORY ARTILLERYMAN ARTOCARPUSES
ASTROLATRIES AUTHORCRAFTS AUTOGRAVURES AVERRUNCATED AVERRUNCATES
AVERRUNCATOR BACKBREAKERS BACTERIURIAS BALLBREAKERS BALLCARRIERS
BANCASSURERS BARBARIANISM BARBARICALLY BARBITURATES BARDOLATRIES
BARDOLATROUS BARGEMASTERS BAROMETRICAL BAROTRAUMATA BARRAMUNDIES
BARRATROUSLY BARRICADOING BARRISTERIAL BEAVERBOARDS BICARPELLARY
BLACKCURRANT BLADDERWRACK BOARDSAILORS BRACHIOSAURS BRACHYGRAPHY
BRADYCARDIAC BRADYCARDIAS BRAGGARTISMS BRAGGARTLIER BRAINTEASERS
BRAINWASHERS BREADBOARDED BREAKDANCERS BREAKFASTERS BREATHALYSER
BREATHALYZER BREATHARIANS BROADCASTERS BUREAUCRATIC CACKERMANDER
CACOGRAPHERS CALLIGRAPHER CAMARADERIES CAMERAPERSON CARAVANSARAI
CARAVANSERAI CARBOHYDRASE CARBOHYDRATE CARBURATIONS CARDBOARDIER
CARDIOGRAPHS CARDIOGRAPHY CARDSHARPERS CARDSHARPING CARICATURING
CARICATURIST CARPENTARIAS CARPETBAGGER CARRAGEENANS CARRAGEENINS
CARRAGHEENAN CARRAGHEENIN CARRIAGEABLE CARRIAGEWAYS CARRYFORWARD
CARTOGRAPHER CARTOGRAPHIC CATERPILLARS CATERWAULERS CERAMOGRAPHY
CERAUNOGRAPH CHAIRWARMERS CHARACTERFUL CHARACTERIES CHARACTERING
CHARACTERISE CHARACTERISM CHARACTERIZE CHARIVARIING CHARTERPARTY
CHARTOGRAPHY CHARTULARIES CHOREODRAMAS CHROMATOGRAM CLAPPERBOARD
CLAPTRAPPERY COLLABORATOR CONFRATERNAL CONTRACTURAL CONTRAYERVAS
CORONAGRAPHS CORRELATABLE CRACKBRAINED CRACKERJACKS CRACKLEWARES
CRANIOSACRAL CRAPEHANGERS CURARISATION CURARIZATION DAGGERBOARDS
DARRAIGNMENT DEALBREAKERS DEBARRASSING DECARBONATOR DEFLAGRATORS
DERMABRASION DERMAPTERANS DEXTROCARDIA DIARTHRODIAL DICARPELLARY
DISARRANGING DISEMBARRASS DIVARICATORS DOCTRINARIAN DOLLAROCRACY
DORSOLATERAL DRAMATURGIES DRAMATURGIST DRAUGHTBOARD EARTHENWARES
EARTHSHAKERS EMBARCADEROS EMBARRASSING ENARTHRODIAL ERYTHRAEMIAS
EVAPOROGRAPH EXAGGERATORS EXAGGERATORY EXASPERATERS EXASPERATORS
EXHILARATORS EXHILARATORY EXTRACRANIAL EXTRAMARITAL EXTRAMURALLY
EXTRANUCLEAR EXTRAPOLATOR FAMILIARISER FAMILIARIZER FARNARKELING
FEATHERBRAIN FIBROSARCOMA FLASHFORWARD FORAMINIFERA FORBEARANCES
FORECARRIAGE FRACTIONATOR FRACTOGRAPHY FRACTOSTRATI FRAGRANTNESS
FRATERNALISM FRITILLARIAS GALACTORRHEA GAMEBREAKERS GATECRASHERS
GERIATRICIAN GORILLAGRAMS GRALLATORIAL GRANDFATHERS GRANDIFLORAS
GRANDMASTERS GRANDPARENTS GRANDSTANDER GRANITEWARES GREATHEARTED
GREGARIANISM GUBERNACULAR HABERDASHERS HABERDASHERY HAEMORRHAGED
HAEMORRHAGES HAEMORRHAGIC HAGIOGRAPHER HAIRBREADTHS HAIRSBREADTH
HALTERBREAKS HAMARTHRITIS HANDICRAFTER HARBORMASTER HARDINGGRASS
HARDSCRABBLE HARMONOGRAMS HARMONOGRAPH HEADQUARTERS HEARTBREAKER
HEARTWARMING HEREDITARIAN HIERARCHICAL HIEROGRAMMAT HYDRARGYRIAS
HYPERAROUSAL HYPERCARBIAS HYPERSARCOMA IAMBOGRAPHER IMPERATORIAL
INAUGURATORS INAUGURATORY INCARCERATED INCARCERATES INCARCERATOR
INFIRMARIANS INFRAORBITAL INGRATIATORY INSTAURATORS INTERLAMINAR
INTERRACIALS INTRACARDIAC INTRACARDIAL INTRACRANIAL INTRAMURALLY
INTRANUCLEAR IRRADIANCIES IRRADIATIONS IRRADICATING IRRATIONALLY
IRREALISABLE IRREALIZABLE IRREFRAGABLE IRREFRAGABLY IRREPAIRABLE
IRREPEALABLE IRREPEALABLY IRRIGATIONAL IRROTATIONAL JAILBREAKERS
KATHAROMETER KERAUNOGRAPH LABORATORIES LABRADORITES LACHRYMARIES
LACHRYMATORS LACHRYMATORY LACQUERWARES LARGEHEARTED LATIROSTRATE
LEADERBOARDS LIBERTARIANS MACROGRAPHIC MACRONUCLEAR MADREPORIANS
MAGISTRATURE MAJORITAIRES MAJORITARIAN MANSPREADERS MANUFACTURER
MARCONIGRAMS MARCONIGRAPH MARGRAVIATES MARPRELATING MARRIAGEABLE
MARSHLANDERS MASQUERADERS MASTURBATORS MASTURBATORY MATERIALISER
MATERIALIZER MATRIARCHATE MATRIARCHIES MATRICULATOR MENORRHAGIAS
METACERCARIA METRORRHAGIA MICROFILARIA MICROMANAGER MISARRANGING
MISCARRIAGES MISMARRIAGES MIXOBARBARIC MORTARBOARDS MURDERABILIA
NARROWCASTED NEANDERTALER NONARBITRARY NONCHARACTER NONLIBRARIAN
NONNARRATIVE NONRAILROADS NORADRENALIN OLEOMARGARIN ORACULARNESS
ORATORICALLY ORCHARDGRASS ORGANOGRAPHY OROGRAPHICAL OROMAXILLARY
OUTMARRIAGES OVERABSTRACT OVERAROUSALS OVERARRANGED OVERARRANGES
OVERDRAMATIC OVERFAMILIAR OVERMANAGERS OVERSATURATE PALEOGRAPHER
PANARTHRITIS PANTOGRAPHER PAPERBACKERS PAPERHANGERS PARACHRONISM
PARACROSTICS PARADOXURINE PARADROPPING PARAGRAPHERS PARAGRAPHIAS
PARAGRAPHING PARAGRAPHIST PARAHYDROGEN PARAMENSTRUA PARAMETERISE
PARAMETERIZE PARAMETRICAL PARAMETRISED PARAMETRISES PARAMETRIZED
PARAMETRIZES PARAMILITARY PARAMORPHINE PARAMORPHISM PARAMORPHOUS
PARANORMALLY PARANTHROPUS PARAPERIODIC PARAPHRASERS PARAPHRASING
PARAPHRASTIC PARAPHRAXIAS PARAPHRENIAS PARAPLANNERS PARAPRAXISES
PARAQUADRATE PARARESCUERS PARASCENDERS PARATHORMONE PARATHYROIDS
PARATRANSITS PARATROOPERS PARENTERALLY PARLOURMAIDS PARTICIPATOR
PARTICULARLY PATRIARCHATE PATRIARCHIES PATRIARCHISM PERAMBULATOR
PERORATIONAL PHRASEMAKERS PHRASEOGRAMS PHRASEOGRAPH PLAGIARISERS
PLAGIARIZERS PLASTERBOARD POLAROGRAPHS POLAROGRAPHY PRAGMATISERS
PRAGMATIZERS PREAPPROVALS PREARRANGING PREASSURANCE PREBREAKFAST
PRECLEARANCE PREFABRICATE PREINAUGURAL PRELAPSARIAN PREMARITALLY
PREMAXILLARY PREPARATIONS PREPARATIVES PREREHEARSAL PREVARICATED
PREVARICATES PREVARICATOR PRIMIGRAVIDA PROBATIONARY PROCARBAZINE
PROCATHEDRAL PROCELLARIAN PROCLAMATORY PROGRADATION PROGRAMMABLE
PROGRAMMATIC PROLETARIANS PROLETARIATE PROLETARIATS PROSTANTHERA
PTEROSAURIAN PURGATORIANS PYROTARTARIC PYROTARTRATE QUADRANGULAR
QUADRATRICES QUADRATRIXES QUARRYMASTER QUARTERBACKS QUARTERFINAL
QUARTERSAWED QUARTERSTAFF QUATERNARIES RACETRACKERS RADIOCARBONS
RADIOGRAPHED RADIOGRAPHER RADIOGRAPHIC RADIOLARIANS RADIOTHERAPY
RADIOTRACERS RAILROADINGS RAREFACTIONS RAREFICATION RASTAFARIANS
RATBAGGERIES RATIOCINATOR RATIONALISER RATIONALIZER RATTLEBRAINS
REACCELERATE REAGGREGATED REAGGREGATES REAPPARELING REAPPARELLED
REAPPEARANCE REAPPRAISALS REAPPRAISERS REAPPRAISING REARTICULATE
REASSURANCES REBROADCASTS RECALCITRANT RECALCITRATE RECALIBRATED
RECALIBRATES RECEPTACULAR RECHARGEABLE RECREATIONAL REFLATIONARY
REFRACTARIES REHYDRATABLE REINCARNATED REINCARNATES REJONEADORAS
REMAINDERMAN RENATURATION RENOVASCULAR REPARABILITY REPATRIATING
REPATRIATION REPATRIATORS REPROACHABLE REPROACHABLY RERADIATIONS
RESEARCHABLE RESTAURATEUR RESTAURATION RESTRAINABLE RETARDANCIES
RETARDATIONS RETRACTATION RETRANSLATED RETRANSLATES RHABDOMANCER
RHINORRHAGIA RHOPALOCERAL RIJKSDAALERS RURALISATION RURALIZATION
SABURRATIONS SACRAMENTARY SAFECRACKERS SAILBOARDERS SANDPAPERIER
SARSAPARILLA SAUERBRATENS SCARIFICATOR SCATTERBRAIN SCATTERGRAMS
SCRAPERBOARD SCRATCHBOARD SCRATCHCARDS SCROPHULARIA SECRETARIATE
SECRETARIATS SEMIARBOREAL SEPARATORIES SEPARATRICES SERASKIERATE
SERTULARIANS SHAREFARMERS SIALORRHOEAS SKATEBOARDER SPARAGRASSES
SPARROWFARTS SPARROWGRASS SPARROWHAWKS SPEARCARRIER SQUIREARCHAL
STANDARDBRED STANDARDISER STANDARDIZER STARBOARDING STEATORRHEAS
STEATORRHOEA STELLARATORS STRAPHANGERS STRATIGRAPHY STRATOCRATIC
STRATOTANKER STRIPPAGRAMS SUBARRATIONS SUBARRHATION SUBAURICULAR
SUBLIBRARIAN SUBPARAGRAPH SUBTERRANEAN SUPERBAZAARS SUPERNACULAR
SUPERNATURAL SUPRACILIARY SUPRACRUSTAL SUPRAORBITAL SURTARBRANDS
TABERNACULAR TACHYGRAPHER TARANTARAING TARATANTARAS TARRADIDDLES
TEREBRATULAE TEREBRATULAS TETRABORATES TETRACHORDAL TETRADRACHMA
TETRADRACHMS TETRARCHATES TETRARCHICAL THREADBAREST THREADMAKERS
TRACASSERIES TRACHEARIANS TRACKERBALLS TRACKWALKERS TRACTORATION
TRADEMARKING TRADITIONARY TRAFFICATORS TRAILBLAZERS TRAILBREAKER
TRAINBEARERS TRANSCRANIAL TRANSFERABLE TRANSFERASES TRANSFERRALS
TRANSMIGRANT TRANSMIGRATE TRANSNATURAL TRANSPARENCE TRANSPARENCY
TRANSPIRABLE TRANSPLANTER TRANSPORTALS TRANSUDATORY TRANSURANIAN
TRANSURANICS TRANSURANIUM TRANSVALUERS TRANSVERSALS TRAPEZOHEDRA
TRIANGULARLY TRIGRAMMATIC TRILATERALLY TRINITARIANS TRIRADIATELY
TROCHANTERAL TRUSTAFARIAN TRYPARSAMIDE TURBELLARIAN TYRANNOSAURS
ULTRACAREFUL ULTRAHEAVIER ULTRALIBERAL ULTRAMARINES ULTRARADICAL
ULTRAREALISM ULTRAREALIST UNBARRICADED UNBARRICADES UNIRRADIATED
UNREMARKABLE UNREMARKABLY UNREPAIRABLE URANOGRAPHER URANOGRAPHIC
UTRICULARIAS VERNACULARLY VETERINARIAN VIBRACULARIA VIBRAHARPIST
WAKEBOARDERS WARRANTISING WARRANTIZING WATERMARKING WEATHERBOARD
WHARFMASTERS