There are 498 words containing 2A, R and X, https://www.bestwordlist.com/c/a/4/wordswithaarx.htm
ABRASAX ABRASAXES ABRAXAS ABRAXASES ADMINISTRATRIX AEROTAXES
AEROTAXIS AFTERTAX ALEXANDER ALEXANDERS ALEXANDERSES ALEXANDRINE
ALEXANDRINES ALEXANDRITE ALEXANDRITES ALEXIPHARMAKON ALEXIPHARMAKONS
ALEXIPHARMIC ALEXIPHARMICS ANOREXIA ANOREXIAS ANTHRAX ANTHRAXES
ANTIVAXER ANTIVAXERS ANTIVAXXER ANTIVAXXERS APPROXIMAL APPROXIMATE
APPROXIMATED APPROXIMATELY APPROXIMATES APPROXIMATING APPROXIMATION
APPROXIMATIONS APPROXIMATIVE APRAXIA APRAXIAS APRAXIC APYREXIA
APYREXIAS ARBITRATRIX ARBITRATRIXES ARCHAEOPTERYX ARCHAEOPTERYXES
ASPHYXIATOR ASPHYXIATORS ATARAXIA ATARAXIAS ATARAXIC ATARAXICS
ATARAXIES ATARAXY AUXANOMETER AUXANOMETERS AUXILIAR AUXILIARIES
AUXILIARS AUXILIARY AVIATRIX AVIATRIXES AXILLAR AXILLARIES AXILLARS
AXILLARY AXISYMMETRICAL BRACHYAXES BRACHYAXIS BROADAX BROADAXE
BROADAXES CARAPAX CARAPAXES CARBOXYLASE CARBOXYLASES CARBOXYLATE
CARBOXYLATED CARBOXYLATES CARBOXYLATING CARBOXYLATION CARBOXYLATIONS
CARFAX CARFAXES CEPHALOTHORAX CEPHALOTHORAXES COCARBOXYLASE COCARBOXYLASES
CONTRASEXUAL CONTRASEXUALS CURTALAX CURTALAXE CURTALAXES DECARBOXYLASE
DECARBOXYLASES DECARBOXYLATE DECARBOXYLATED DECARBOXYLATES DECARBOXYLATING
DECARBOXYLATION DEXTRANASE DEXTRANASES DEXTROCARDIA DEXTROCARDIAC
DEXTROCARDIACS DEXTROCARDIAS DOXAPRAM DOXAPRAMS DYSPRAXIA DYSPRAXIAS
EARTHFLAX EARTHFLAXES EARTHWAX EARTHWAXES EARWAX EARWAXES ECHOPRAXIA
ECHOPRAXIAS EXACERBATE EXACERBATED EXACERBATES EXACERBATING EXACERBATION
EXACERBATIONS EXAGGERATE EXAGGERATED EXAGGERATEDLY EXAGGERATEDNESS
EXAGGERATES EXAGGERATING EXAGGERATINGLY EXAGGERATION EXAGGERATIONS
EXAGGERATIVE EXAGGERATOR EXAGGERATORS EXAGGERATORY EXAMINATOR
EXAMINATORS EXAMPLAR EXAMPLARS EXARATE EXARATION EXARATIONS EXARCHAL
EXARCHATE EXARCHATES EXASPERATE EXASPERATED EXASPERATEDLY EXASPERATER
EXASPERATERS EXASPERATES EXASPERATING EXASPERATINGLY EXASPERATION
EXASPERATIONS EXASPERATIVE EXASPERATOR EXASPERATORS EXCARNATE
EXCARNATED EXCARNATES EXCARNATING EXCARNATION EXCARNATIONS EXCAVATOR
EXCAVATORS EXCLAMATORILY EXCLAMATORY EXCLAUSTRATION EXCLAUSTRATIONS
EXHILARANT EXHILARANTS EXHILARATE EXHILARATED EXHILARATES EXHILARATING
EXHILARATINGLY EXHILARATION EXHILARATIONS EXHILARATIVE EXHILARATOR
EXHILARATORS EXHILARATORY EXOPARASITE EXOPARASITES EXOPARASITIC
EXPANSIONARY EXPATIATOR EXPATIATORS EXPATIATORY EXPATRIATE EXPATRIATED
EXPATRIATES EXPATRIATING EXPATRIATION EXPATRIATIONS EXPATRIATISM
EXPATRIATISMS EXPLANATORILY EXPLANATORY EXPLORATIONAL EXPURGATORIAL
EXTERNALISATION EXTERNALIZATION EXTRACANONICAL EXTRACELLULAR
EXTRACELLULARLY EXTRACORPOREAL EXTRACRANIAL EXTRACTABILITY EXTRACTABLE
EXTRACTANT EXTRACTANTS EXTRACURRICULAR EXTRADITABLE EXTRADOTAL
EXTRADURAL EXTRADURALS EXTRAFLORAL EXTRAFORANEOUS EXTRAGALACTIC
EXTRAHEPATIC EXTRAJUDICIAL EXTRAJUDICIALLY EXTRALEGAL EXTRALEGALLY
EXTRALIMITAL EXTRALIMITARY EXTRALITERARY EXTRALOGICAL EXTRAMARITAL
EXTRAMARITALLY EXTRAMETRICAL EXTRAMUNDANE EXTRAMURAL EXTRAMURALLY
EXTRAMUSICAL EXTRANUCLEAR EXTRAORDINAIRE EXTRAORDINARIES EXTRAORDINARILY
EXTRAORDINARY EXTRAPOLATE EXTRAPOLATED EXTRAPOLATES EXTRAPOLATING
EXTRAPOLATION EXTRAPOLATIONS EXTRAPOLATIVE EXTRAPOLATOR EXTRAPOLATORS
EXTRAPOLATORY EXTRAPYRAMIDAL EXTRASOLAR EXTRATEXTUAL EXTRATROPICAL
EXTRAVAGANCE EXTRAVAGANCES EXTRAVAGANCIES EXTRAVAGANCY EXTRAVAGANT
EXTRAVAGANTLY EXTRAVAGANZA EXTRAVAGANZAS EXTRAVAGATE EXTRAVAGATED
EXTRAVAGATES EXTRAVAGATING EXTRAVAGATION EXTRAVAGATIONS EXTRAVASATE
EXTRAVASATED EXTRAVASATES EXTRAVASATING EXTRAVASATION EXTRAVASATIONS
EXTRAVASCULAR EXTRAVEHICULAR FLEXITARIAN FLEXITARIANISM FLEXITARIANISMS
FLEXITARIANS FRAXINELLA FRAXINELLAS FRICANDEAUX GASPEREAUX GRAVADLAX
GRAVADLAXES GRAVLAX GRAVLAXES HETEROTAXIA HETEROTAXIAS HEXACHLORETHANE
HEXACHLOROPHANE HEXAGRAM HEXAGRAMMOID HEXAGRAMMOIDS HEXAGRAMS
HEXAHEDRA HEXAHEDRAL HEXAHYDRATE HEXAHYDRATED HEXAHYDRATES HEXAMERAL
HEXAMETRAL HEXAMETRICAL HEXANDRIAN HEXANGULAR HEXAPLAR HEXAPLARIAN
HEXAPLARIC HEXOBARBITAL HEXOBARBITALS HYDROXYAPATITE HYDROXYAPATITES
HYDROXYLAPATITE HYPERCATALEXES HYPERCATALEXIS INFRAMAXILLARY
INTERMAXILLA INTERMAXILLAE INTERMAXILLARY INTERPAROXYSMAL INTRASEXUAL
ISOCARBOXAZID ISOCARBOXAZIDS LARNAX LAXATOR LAXATORS LEXICOGRAPHICAL
LEXIGRAPHICAL MALAXATOR MALAXATORS MARXISANT MAXILLAR MAXILLARIES
MAXILLARY MAXILLIPEDARY METATHORAX METATHORAXES MIXOBARBARIC
MORPHALLAXES MORPHALLAXIS NASOPHARYNX NASOPHARYNXES NONEXPLANATORY
OROMAXILLARY OVEREXAGGERATE OVEREXAGGERATED OVEREXAGGERATES OVEREXTRAPOLATE
OVEREXTRAVAGANT OVERTAXATION OVERTAXATIONS PARADOX PARADOXAL
PARADOXER PARADOXERS PARADOXES PARADOXICAL PARADOXICALITY PARADOXICALLY
PARADOXICALNESS PARADOXIDIAN PARADOXIES PARADOXIST PARADOXISTS
PARADOXOLOGIES PARADOXOLOGY PARADOXURE PARADOXURES PARADOXURINE
PARADOXURINES PARADOXY PARALEXIA PARALEXIAS PARALEXIC PARALLAX
PARALLAXES PARAMYXOVIRUS PARAMYXOVIRUSES PARAPHRAXES PARAPHRAXIA
PARAPHRAXIAS PARAPHRAXIS PARAPRAXES PARAPRAXIS PARAPRAXISES PARASEXUAL
PARASEXUALITIES PARASEXUALITY PARATAXES PARATAXIS PARAXIAL PAROXYSMAL
PAROXYSMALLY POLYCARBOXYLATE PORTMANTEAUX PRAXEOLOGICAL PREAXIAL
PREAXIALLY PREMAXILLA PREMAXILLAE PREMAXILLARIES PREMAXILLARY
PREMAXILLAS PROTOGALAXIES PROTOGALAXY QUADRATRIX QUADRATRIXES
REANNEXATION REANNEXATIONS REEXAMINATION REEXAMINATIONS RELAXABLE
RELAXANT RELAXANTS RELAXATION RELAXATIONS RELAXATIVE RELAXATIVES
SAXIFRAGACEOUS SAXIFRAGE SAXIFRAGES SEPARATRIX SEXAGENARIAN SEXAGENARIANS
SEXAGENARIES SEXAGENARY SEXANGULAR SEXANGULARLY SPARAXIS SPARAXISES
STEREOTAXIA STEREOTAXIAS STEREOTAXICALLY SUBAXILLARY SUBMAXILLARIES
SUBMAXILLARY SUPEREXALTATION SUPRAMAXILLARY SYNAXARIA SYNAXARION
TARAXACUM TARAXACUMS TAXAMETER TAXAMETERS TAXIARCH TAXIARCHS
TAXIDERMAL TAXPAYER TAXPAYERS TOXOCARA TOXOCARAL TOXOCARAS TOXOCARIASES
TOXOCARIASIS TRANSAXLE TRANSAXLES TRANSEXUAL TRANSEXUALISM TRANSEXUALISMS
TRANSEXUALITIES TRANSEXUALITY TRANSEXUALS TRANSSEXUAL TRANSSEXUALISM
TRANSSEXUALISMS TRANSSEXUALITY TRANSSEXUALS TRIAXIAL TRIAXIALITIES
TRIAXIALITY TRIAXIALS TROPHALLAXES TROPHALLAXIS UNEXAGGERATED
UNEXTRAORDINARY XANTHOCHROIA XANTHOCHROIAS XANTHOCHROMIA XANTHOCHROMIAS
XENARTHRAL XENOTRANSPLANT XENOTRANSPLANTS XERASIA XERASIAS XEROGRAPHICALLY
XEROMATA XEROPHTHALMIA XEROPHTHALMIAS XERORADIOGRAPHY XEROSTOMATA
XIPHIPLASTRA XIPHIPLASTRAL XIPHIPLASTRALS XYLOGRAPHICAL