There are 740 fifteen-letter words containing 2A, 2I and R, https://www.bestwordlist.com/c/a/5/15letterwordswithaaiir.htm
ABORIGINALITIES ABSORBABILITIES ABSTRACTIONISMS ABSTRACTIONISTS
ACHROMATICITIES ACHROMATISATION ACHROMATIZATION ACIDIMETRICALLY
ACQUIRABILITIES ACTINOTHERAPIES ADIATHERMANCIES ADMINISTRATIONS
ADSORBABILITIES AERODYNAMICISTS AEROELASTICIANS AEROSOLISATIONS
AEROSOLIZATIONS AFFORDABILITIES AGRIBUSINESSMAN AGRICULTURALIST
ALGORITHMICALLY ALLEGORISATIONS ALLEGORIZATIONS ALTITUDINARIANS
AMPHITHEATRICAL ANAGRAMMATISING ANAGRAMMATIZING ANARCHISTICALLY
ANFRACTUOSITIES ANIMATRONICALLY ANISOTROPICALLY ANSWERABILITIES
ANTAPHRODISIACS ANTIABORTIONIST ANTIAPHRODISIAC ANTIARRHYTHMICS
ANTICARCINOGENS ANTICHRISTIANLY ANTICLERICALISM ANTIDERIVATIVES
ANTIDIARRHOEALS ANTIEGALITARIAN ANTIFEDERALISTS ANTILIBERALISMS
ANTILIBERTARIAN ANTILOGARITHMIC ANTIMATERIALISM ANTIMATERIALIST
ANTIMILITARISMS ANTIMILITARISTS ANTIMONARCHICAL ANTIMONARCHISTS
ANTINUCLEARISTS ANTIPERISTALSES ANTIPERISTALSIS ANTIPERISTALTIC
ANTIPERSPIRANTS ANTIQUARIANISMS ANTIRADICALISMS ANTIRATIONALISM
ANTIRATIONALIST ANTIRATIONALITY ANTIREPUBLICANS ANTIRETROVIRALS
ANTIROMANTICISM ANTISEGREGATION ANTISEPARATISTS ANTITHEORETICAL
ANTITRADITIONAL ANTITRANSPIRANT ANTITRINITARIAN APPENDICULARIAN
APPROACHABILITY APPROPINQUATING APPROPINQUATION ARACHNOIDITISES
ARBITRARINESSES ARCHIDIACONATES ARCHIEPISCOPACY ARCHIEPISCOPATE
ARIBOFLAVINOSES ARIBOFLAVINOSIS ARTERIALISATION ARTERIALIZATION
ARTERIOGRAPHIES ARTIFICIALISING ARTIFICIALITIES ARTIFICIALIZING
ASTRODYNAMICIST ASTRONAVIGATION ATRABILIOUSNESS ATTITUDINARIANS
AUDIOMETRICALLY AUDIOMETRICIANS AUTHORITATIVELY AUTOBIOGRAPHIES
BACTERIOLOGICAL BACTERIOPHAGIES BASTARDISATIONS BASTARDIZATIONS
BIBLIOGRAPHICAL BIOASTRONAUTICS BIODEGRADATIONS BIOGEOGRAPHICAL
BIOSTRATIGRAPHY BIPARTISANSHIPS BIPOLARISATIONS BIPOLARIZATIONS
BRACHIOCEPHALIC BRACHYPINAKOIDS BREATHABILITIES BREATHARIANISMS
BUREAUCRATISING BUREAUCRATIZING CALENDARISATION CALENDARIZATION
CALORIFICATIONS CANISTERISATION CANISTERIZATION CAPRIFOLIACEOUS
CARAMELISATIONS CARAMELIZATIONS CARDIOGRAPHICAL CATEGORISATIONS
CATEGORIZATIONS CATHETERISATION CATHETERIZATION CENTENARIANISMS
CENTRALISATIONS CENTRALIZATIONS CHAMBERLAINSHIP CHARACTERISTICS
CHARGEABILITIES CHORIOALLANTOIC CHORIOALLANTOIS CHORIOCARCINOMA
CINEANGIOGRAPHY CINEMATOGRAPHIC CIRCULARISATION CIRCULARIZATION
CIRCUMAMBAGIOUS CIRCUMNAVIGABLE CIRCUMNAVIGATED CIRCUMNAVIGATES
CIRCUMNAVIGATOR CIRCUMSTANTIALS CIRCUMSTANTIATE CIRCUMVALLATING
CIRCUMVALLATION CLAUSTROPHILIAS CLIMACTERICALLY CLIMATOGRAPHIES
COCHAIRMANSHIPS COLLATERALISING COLLATERALITIES COLLATERALIZING
COMBINATORIALLY COMPARABILITIES CONFIGURATIONAL CONNATURALISING
CONNATURALITIES CONNATURALIZING CONTRACTABILITY CONTRAINDICANTS
CONTRAINDICATED CONTRAINDICATES CORPORATIZATION CRANIOLOGICALLY
CRIMINALISATION CRIMINALIZATION CRYSTALISATIONS CRYSTALIZATIONS
CRYSTALLISATION CRYSTALLIZATION DECARBONISATION DECARBONIZATION
DECARBURISATION DECARBURIZATION DEFAMILIARIZING DEGLAMORISATION
DEGLAMORIZATION DEGRADABILITIES DEMATERIALISING DEMATERIALIZING
DEMOCRATIFIABLE DEMOCRATISATION DEMOCRATIZATION DEMORALISATIONS
DEMORALIZATIONS DEPOLARISATIONS DEPOLARIZATIONS DERIVATISATIONS
DERIVATIZATIONS DESACRALISATION DESACRALIZATION DETRIBALISATION
DETRIBALIZATION DEVALORISATIONS DEVALORIZATIONS DIAPHRAGMATITIS
DIAPHRAGMITISES DIASTROPHICALLY DICTATORIALNESS DISACCHARIDASES
DISAFFIRMATIONS DISAGGREGATIONS DISAGREEABILITY DISAPPROBATIONS
DISAPPROPRIATED DISAPPROPRIATES DISARTICULATING DISARTICULATION
DISARTICULATORS DISCIPLINARIANS DISEMBARKATIONS DISEMBARRASSING
DISINCARCERATED DISINCARCERATES DISINFLATIONARY DISNATURALISING
DISNATURALIZING DISORGANISATION DISORGANIZATION DISSATISFACTORY
DITHIOCARBAMATE DITHYRAMBICALLY DOCTRINARIANISM DORSIBRANCHIATE
EDRIOPHTHALMIAN EGALITARIANISMS ENDOPARASITISMS EPIGRAMMATISERS
EPIGRAMMATISING EPIGRAMMATIZERS EPIGRAMMATIZING EQUALITARIANISM
ETERNALISATIONS ETERNALIZATIONS ETHEREALISATION ETHEREALIZATION
EVANGELISTARIES EVANGELISTARION EVAPORABILITIES EXTERNALISATION
EXTERNALIZATION EXTRAJUDICIALLY EXTRAORDINARIES EXTRAORDINARILY
FACTORABILITIES FAMILIARISATION FAMILIARIZATION FEDERALISATIONS
FEDERALIZATIONS FIBROCARTILAGES FLEXITARIANISMS FORISFAMILIATED
FORISFAMILIATES FORMALISTICALLY FORMULARISATION FORMULARIZATION
FRACTIONALISING FRACTIONALIZING FRACTIONISATION FRACTIONIZATION
FRATERNISATIONS FRATERNIZATIONS FUTILITARIANISM GENERALISATIONS
GENERALIZATIONS GRANGERISATIONS GRANGERIZATIONS GRANITIFICATION
GRANULITISATION GRANULITIZATION GRAPHITISATIONS GRAPHITIZATIONS
GRAVIMETRICALLY GRAVITATIONALLY GUTTURALISATION GUTTURALIZATION
HAEMOGLOBINURIA HARMONISTICALLY HEPARINISATIONS HEPARINIZATIONS
HEREDITARIANISM HEREDITARIANIST HIERARCHIZATION HIEROGRAMMATIST
HUMANITARIANISM HUMANITARIANIST HYPERLIPIDAEMIA HYPERPARASITISM
HYPERSALIVATION HYPERURICAEMIAS ICHTHYOSAURIANS ICOSITETRAHEDRA
IDEOGRAPHICALLY IDIOSYNCRATICAL IMAGINARINESSES IMMATERIALISING
IMMATERIALITIES IMMATERIALIZING IMMEASURABILITY IMMORTALISATION
IMMORTALIZATION IMPARTIALNESSES IMPRACTICALNESS IMPROVISATIONAL
IMPROVISATORIAL INAPPRECIATIONS INAPPROPRIATELY INARTICULATIONS
INCOMPARABILITY INERADICABILITY INFORMATIONALLY INFORMATISATION
INFORMATIZATION INFRALAPSARIANS INORGANISATIONS INORGANIZATIONS
INSPIRATIONALLY INTERANIMATIONS INTERBEHAVIORAL INTERCLAVICULAR
INTERFASCICULAR INTERGRADATIONS INTERJACULATING INTERLAMINATING
INTERLAMINATION INTERNALISATION INTERNALIZATION INTERNATIONALLY
INTERROGATIONAL INTRADERMICALLY INTRAFASCICULAR INTRANSIGEANCES
INTRANSIGEANTLY INTRAPERITONEAL INTRAPOPULATION INTRAPRENEURIAL
INVARIABILITIES IRRATIONALISING IRRATIONALISTIC IRRATIONALITIES
IRRATIONALIZING IRREFRAGABILITY IRREPEALABILITY JOURNALISATIONS
JOURNALIZATIONS KARSTIFICATIONS KERATINISATIONS KERATINIZATIONS
KINEMATOGRAPHIC LABYRINTHICALLY LATERALISATIONS LATERALIZATIONS
LATITUDINARIANS LEXICOGRAPHICAL LIBERALISATIONS LIBERALIZATIONS
LIBERTARIANISMS LIPOGRAMMATISMS LIPOGRAMMATISTS LITERALISATIONS
LITERALIZATIONS LOGARITHMICALLY MAGISTERIALNESS MAGISTRATESHIPS
MAGISTRATICALLY MAJORITARIANISM MALADMINISTERED MALPRACTITIONER
MANEUVERABILITY MANNERISTICALLY MANOEUVRABILITY MARCONIGRAPHING
MARGARITIFEROUS MARGINALISATION MARGINALIZATION MARKETABILITIES
MARRIAGEABILITY MARTENSITICALLY MATERFAMILIASES MATERIALISATION
MATERIALISTICAL MATERIALIZATION MATRIARCHALISMS MATRIFOCALITIES
MATRILOCALITIES MEASURABILITIES MELODRAMATISING MELODRAMATIZING
MEMORIALISATION MEMORIALIZATION MERCHANTABILITY METACINNABARITE
METAGRABOLISING METAGRABOLIZING MICROANALYTICAL MICROANATOMICAL
MICROMICROFARAD MICRORADIOGRAPH MILITARISATIONS MILITARIZATIONS
MILLENARIANISMS MINERALISATIONS MINERALIZATIONS MINERALOGICALLY
MINIATURISATION MINIATURIZATION MINICALCULATORS MISAPPRECIATING
MISAPPRECIATION MISAPPRECIATIVE MISAPPROPRIATED MISAPPROPRIATES
MISARTICULATING MISARTICULATION MISCELLANARIANS MISCHARACTERISE
MISCHARACTERIZE MISTRANSLATIONS MORPHINOMANIACS MULTIARTICULATE
MULTILATERALISM MULTILATERALIST MULTIRACIALISMS NATURALISATIONS
NATURALIZATIONS NECESSARIANISMS NEUTRALISATIONS NEUTRALIZATIONS
NONARISTOCRATIC NONBIOGRAPHICAL NONCHARISMATICS NONHIERARCHICAL
NONINFLATIONARY NONPARTICIPANTS NONPARTISANSHIP NONPARTIZANSHIP
NONTOTALITARIAN NONUTILITARIANS NOTHINGARIANISM NUCLEARISATIONS
NUCLEARIZATIONS NUDIBRANCHIATES OLIGOSACCHARIDE OPERATIONALISMS
OPERATIONALISTS ORIENTALIZATION ORIENTATIONALLY OVERAPPLICATION
OVERCAPITALISED OVERCAPITALISES OVERCAPITALIZED OVERCAPITALIZES
OVERDRAMATISING OVERDRAMATIZING OVERFAMILIARITY OVERIMAGINATIVE
PANTISOCRATICAL PANTISOCRATISTS PARABOLISATIONS PARABOLIZATIONS
PARAHELIOTROPIC PARALINGUISTICS PARAMETRISATION PARAMETRIZATION
PARANORMALITIES PARAROSANILINES PARASEXUALITIES PARASITICALNESS
PARASITISATIONS PARASITIZATIONS PARASITOLOGICAL PARASITOLOGISTS
PARLIAMENTARIAN PARLIAMENTARILY PARLIAMENTARISM PARTICIPATIONAL
PARTICIPATORIES PARTICULARISERS PARTICULARISING PARTICULARISTIC
PARTICULARITIES PARTICULARIZERS PARTICULARIZING PARTURIFACIENTS
PASTEURISATIONS PASTEURIZATIONS PATERFAMILIASES PATRIALISATIONS
PATRIALIZATIONS PATRIARCHALISMS PATRIFOCALITIES PERIPATETICALLY
PERISTALTICALLY PERSONALISATION PERSONALIZATION PHARISAICALNESS
PHARMACOKINETIC PHILANTHROPICAL PHYSIOGRAPHICAL PLANIMETRICALLY
PLATITUDINARIAN PLURALISTICALLY POPULARISATIONS POPULARIZATIONS
POSTIRRADIATION POSTMILLENARIAN PRAGMATISATIONS PRAGMATIZATIONS
PREDESTINARIANS PREFABRICATIONS PREIMPLANTATION PREINSTALLATION
PREMILLENARIANS PROCRASTINATING PROCRASTINATION PROCRASTINATIVE
PROGRAMMABILITY PROLETARIANISED PROLETARIANISES PROLETARIANISMS
PROLETARIANIZED PROLETARIANIZES PRONUNCIATIONAL PROPAGABILITIES
PRUSSIANISATION PRUSSIANIZATION PSYCHIATRICALLY PURITANICALNESS
QUADRINGENARIES QUADRIPARTITION QUADRISYLLABICS QUADRIVALENCIES
QUADRUPLICATING QUADRUPLICATION QUARTERFINALIST QUINALBARBITONE
QUINQUAGENARIAN QUODLIBETARIANS RADICALISATIONS RADICALIZATIONS
RADICULOPATHIES RADIOACTIVATING RADIOACTIVATION RADIOACTIVITIES
RADIOBIOLOGICAL RADIOCHEMICALLY RADIOLOCATIONAL RADIOMETRICALLY
RADIOPHONICALLY RADIOSCOPICALLY RADIOTHERAPISTS RATIONALISATION
RATIONALIZATION REACCLIMATISING REACCLIMATIZING REACCREDITATION
REACTIONARYISMS REALISABILITIES REALIZABILITIES REAPPROPRIATING
REARTICULATIONS REASONABILITIES REAUTHORISATION REAUTHORIZATION
RECALCITRANCIES RECALCITRATIONS RECALLABILITIES RECANALISATIONS
RECANALIZATIONS RECAPITULATIONS RECOMBINATIONAL RECONTAMINATING
RECONTAMINATION REGIONALISATION REGIONALIZATION REGULARISATIONS
REGULARIZATIONS REHABILITATIONS REHUMANIZATIONS REIMPLANTATIONS
REINSTALLATIONS RELATIVISATIONS RELATIVIZATIONS REMARKABILITIES
REMATERIALISING REMATERIALIZING REMORALISATIONS REMORALIZATIONS
RENATIONALISING RENATIONALIZING RENORMALISATION RENORMALIZATION
REORGANISATIONS REORGANIZATIONS REPAIRABILITIES REPEATABILITIES
REPOLARISATIONS REPOLARIZATIONS REPRIVATISATION REPRIVATIZATION
RESOCIALISATION RESOCIALIZATION RESTABILIZATION RETALIATIONISTS
RETRIBALIZATION REVALORISATIONS REVALORIZATIONS REVEALABILITIES
REVISUALISATION REVISUALIZATION REVITALISATIONS REVITALIZATIONS
RITUALISTICALLY ROMANTICALITIES ROMANTICISATION ROMANTICIZATION
SABERMETRICIANS SACCHARIMETRIES SACCHARISATIONS SACCHARIZATIONS
SACERDOTALISING SACERDOTALIZING SACROSANCTITIES SATIRICALNESSES
SEARCHABILITIES SECULARISATIONS SECULARIZATIONS SEISMOGRAPHICAL
SEMIABSTRACTION SEMIPARASITISMS SHERARDISATIONS SHERARDIZATIONS
SINGULARISATION SINGULARIZATION SOLITUDINARIANS SPIROCHAETAEMIA
SPREADABILITIES STANDARDISATION STANDARDIZATION STRAITJACKETING
STRAITWAISTCOAT STRATICULATIONS STRATIFICATIONS STRATIGRAPHICAL
STRATIGRAPHISTS SUBLAPSARIANISM SUBORGANISATION SUBORGANIZATION
SUBURBANISATION SUBURBANIZATION SUPERADDITIONAL SUPERPARASITISM
TABULARISATIONS TABULARIZATIONS TECTIBRANCHIATE TETRABASICITIES
THEATRICALISING THEATRICALITIES THEATRICALIZING THERMALISATIONS
THERMALIZATIONS THIOBARBITURATE TOTALITARIANISE TOTALITARIANISM
TOTALITARIANIZE TRADITIONALISED TRADITIONALISES TRADITIONALISMS
TRADITIONALISTS TRADITIONALIZED TRADITIONALIZES TRANQUILISATION
TRANQUILIZATION TRANSAMINATIONS TRANSCRIPTIONAL TRANSEXUALITIES
TRANSFERABILITY TRANSFIGURATION TRANSHISTORICAL TRANSILLUMINATE
TRANSLATABILITY TRANSLITERATING TRANSLITERATION TRANSMIGRATIONS
TRANSMITTANCIES TRANSMUTABILITY TRANSPIRATIONAL TRANSPOSABILITY
TRANSPOSITIONAL TRAUMATISATIONS TRAUMATIZATIONS TRIANGULARITIES
TRICHOMONACIDAL TRISYLLABICALLY TRIVIALISATIONS TRIVIALIZATIONS
TROPICALISATION TROPICALIZATION TRYPANOSOMIASIS UBIQUITARIANISM
ULTRAFASTIDIOUS ULTRAFILTRATION ULTRALIBERALISM UNANSWERABILITY
UNAPPRECIATIONS UNAPPROPRIATING UNAUTHORITATIVE UNDERCAPITALISE
UNDERCAPITALIZE UNFAMILIARITIES UNIFORMITARIANS UNILATERALITIES
UNIVERSALISABLE UNIVERSALIZABLE UNPATRIOTICALLY UNREADABILITIES
UNREALISTICALLY UNSECTARIANISMS UNTRADITIONALLY UPGRADABILITIES
UTILITARIANISED UTILITARIANISES UTILITARIANISMS UTILITARIANIZED
UTILITARIANIZES VALETUDINARIANS VAPOURABILITIES VASCULARISATION
VASCULARIZATION VERNACULARISING VERNACULARITIES VERNACULARIZING
VIRTUALISATIONS VIRTUALIZATIONS WEATHERISATIONS WEATHERIZATIONS