There are 443 thirteen-letter words containing 2A, I, T and Y, https://www.bestwordlist.com/c/a/5/13letterwordswithaaity.htm ABORIGINALITY ABSORBABILITY ABSTRACTIVELY ACCEPTABILITY ACCIDENTALITY ACCOMPANYISTS ACHROMATICITY ACQUIRABILITY ACROBATICALLY ACTINOTHERAPY ADDITIONALITY ADIABATICALLY ADIATHERMANCY ADJUSTABILITY ADSORBABILITY ADUMBRATIVELY ADVERSATIVELY AESTHETICALLY AFFECTABILITY AFFECTIONALLY AFFIRMATIVELY AFFORDABILITY AGGRAVATINGLY AGGREGATIVELY AGONISTICALLY AHISTORICALLY ALLOTYPICALLY ALTERNATINGLY ALTERNATIVELY AMBISEXUALITY ANALYSABILITY ANALYTICITIES ANALYZABILITY ANAPHYLACTOID ANECDOTICALLY ANFRACTUOSITY ANONYMISATION ANONYMIZATION ANSWERABILITY ANTHRACYCLINE ANTIAUTHORITY ANTICATALYSTS ANTIGENICALLY ANTINOMICALLY ANTIPREDATORY ANTIROYALISTS ANTISEXUALITY ANTISOCIALITY ANTITYPICALLY ANYTHINGARIAN APATHETICALLY APLANATICALLY APOCALYPTICAL APOCALYPTISMS APOCALYPTISTS APODICTICALLY APOLITICALITY APOMICTICALLY APOSTOLICALLY APPEALABILITY APPELLATIVELY APPLICABILITY APPLICATIVELY APPROPRIATELY APPROXIMATELY APTITUDINALLY ARTERIOGRAPHY ARTHRITICALLY ARTIFICIALITY ASCERTAINABLY ASPHYXIATIONS ASSIGNABILITY ASSOCIABILITY ASSOCIATIVELY ASSOCIATIVITY ASSORTATIVELY ASTHMATICALLY ASTRODYNAMICS ASTROPHYSICAL ASYNDETICALLY ATAVISTICALLY ATHEISTICALLY ATHEMATICALLY ATOMISTICALLY ATTAINABILITY ATTITUDINALLY ATYPICALITIES AUTHENTICALLY AUTOBIOGRAPHY AUTOCATALYSIS AUTOCATALYTIC AUTOMAGICALLY AUTOMATICALLY AUTONOMICALLY AUTOSTABILITY AVOCATIONALLY AXIOMATICALLY AYUNTAMIENTOS BACTERIOPHAGY BALLISTICALLY BATHYMETRICAL BIOSTATICALLY BOMBASTICALLY BREATHABILITY BREATHALYSING BREATHALYZING CALCULABILITY CALCULATINGLY CAPTIVATINGLY CARBONYLATING CARBONYLATION CARBOXYLATING CARBOXYLATION CASUISTICALLY CATABOLICALLY CATALYTICALLY CATATONICALLY CATEGORICALLY CATHARTICALLY CHANGEABILITY CHARGEABILITY CHROMATICALLY CINEMATICALLY CLADISTICALLY CLAIRVOYANTLY CLAVICYTHERIA CLIMACTICALLY CLIMATOGRAPHY COAGULABILITY COLLATERALITY COMPARABILITY COMPARATIVELY COMPLAISANTLY CONNATURALITY CRYPTANALYSIS CRYPTANALYTIC CRYSTALISABLE CRYSTALIZABLE CRYSTALLOIDAL CYANOBACTERIA CYTOCHALASINS DACTYLIOMANCY DAMAGEABILITY DECLAMATORILY DECLARATIVELY DECLARATORILY DEGRADABILITY DETACHABILITY DEVASTATINGLY DIACRITICALLY DIALECTICALLY DIALYPETALOUS DIALYSABILITY DIALYZABILITY DIAMETRICALLY DICTATORIALLY DUALISTICALLY DYSAESTHESIAS EDUCATABILITY EDUCATIONALLY ENCAUSTICALLY ENHYPOSTASIAS ENIGMATICALLY ENZYMATICALLY EPINASTICALLY EQUILATERALLY EVANGELISTARY EVAPORABILITY EXAMINABILITY EXCLAMATORILY EXPANDABILITY EXPLANATIVELY EXPLANATORILY EXTRALIMITARY EXTRALITERARY EXTRAORDINARY FACTORABILITY FACULTATIVELY FANTASMICALLY FANTASTICALLY FASCICULATELY FASCINATINGLY FASCISTICALLY FAUNISTICALLY FORESTAYSAILS FOUNDATIONARY FRAGMENTARILY GEOSTATIONARY GEOTACTICALLY GNATHONICALLY GRADATIONALLY GRAMMATICALLY GYMNASTICALLY GYNAECOCRATIC GYNAECOMASTIA GYNECOMASTIAS HAEMATOXYLINS HALLUCINATORY HEPTASYLLABIC HYALINISATION HYALINIZATION HYDROPATHICAL HYDROSTATICAL HYPAESTHESIAS HYPERPARASITE HYPERRATIONAL HYPNOANALYTIC HYPONATRAEMIA HYPONATRAEMIC HYPONATREMIAS HYSTEROMANIAS ICHTHYOFAUNAE ICHTHYOFAUNAL ICHTHYOFAUNAS IDIOMATICALLY IMAGINATIVELY IMAGISTICALLY IMMATERIALITY IMPALPABILITY IMPASSABILITY IMPLACABILITY IMPRACTICABLY IMPRACTICALLY INDEFATIGABLY INELABORATELY INELASTICALLY INSATIABILITY INSTANTANEITY INTERCALARILY INTERFACIALLY INTERRACIALLY INTERRADIALLY INTRACAVITARY INTRADERMALLY INTRAOCULARLY INTRATHECALLY INVARIABILITY IPSILATERALLY IRRATIONALITY ISOSTATICALLY JUDGMATICALLY KATABOLICALLY KINEMATICALLY LABYRINTHICAL LACHRYMATIONS LACTATIONALLY LATITUDINALLY LETHARGICALLY LYMPHATICALLY MACHINABILITY MACRODACTYLIC MAGISTERIALLY MALADAPTIVELY MANAGEABILITY MARKETABILITY MARTYRISATION MARTYRIZATION MATRICULATORY MATRIFOCALITY MATRILINEALLY MATRILOCALITY MATRIMONIALLY MEASURABILITY MEDIATORIALLY MEDICAMENTARY MESATICEPHALY METABOLICALLY METAMERICALLY METAPHYSICIAN METAPSYCHICAL METASTABILITY MICROANALYSTS MICROANALYTIC MULTIRACIALLY MUTAGENICALLY MYCOBACTERIAL NAPHTHYLAMINE NOMINATIVALLY NONANALYTICAL NONSTATIONARY NOSTALGICALLY OBTAINABILITY OCCASIONALITY ONOMASTICALLY OPERATIONALLY ORGIASTICALLY PAINSTAKINGLY PALAEOCRYSTIC PANCYTOPENIAS PARALYSATIONS PARALYTICALLY PARALYZATIONS PARANORMALITY PARASEXUALITY PARASITICALLY PARASYMBIONTS PARASYMBIOTIC PARASYNTHESIS PARASYNTHETIC PARLIAMENTARY PARTICIPANTLY PARTICIPATORY PARTICIPIALLY PARTICULARITY PATENTABILITY PATRIARCHALLY PATRIFOCALITY PATRILINEALLY PATRILINEARLY PATRIMONIALLY PATRIOTICALLY PATRISTICALLY PEIRASTICALLY PENTADACTYLIC PENTASYLLABIC PHANTASMALITY PHTHALOCYANIN PHYLACTERICAL PHYTOSANITARY PIANISTICALLY PISCATORIALLY PLASTOCYANINS PLATINOCYANIC PLATYCEPHALIC PLATYRRHINIAN PLAYABILITIES PNEUMATICALLY POLYCYTHAEMIA POSTCRANIALLY PRAGMATICALLY PRECAUTIONARY PREFATORIALLY PREPARATIVELY PREPARATORILY PRISMATICALLY PROBATIONALLY PROPAGABILITY PSYCHASTHENIA PSYCHIATRICAL PURGATORIALLY PURITANICALLY QUADRATICALLY QUALIFICATORY QUALITATIVELY QUASICRYSTALS RADICULOPATHY RADIOACTIVELY RADIOACTIVITY RATIOCINATORY REALISABILITY REALISTICALLY REALIZABILITY REASONABILITY REBARBATIVELY RECALCITRANCY RECALLABILITY REMARKABILITY REPAIRABILITY REPEATABILITY REVEALABILITY RHEUMATICALLY ROMANTICALITY SACCHARIMETRY SACROSANCTITY SARCASTICALLY SATURNALIANLY SCHEMATICALLY SEARCHABILITY SEASONABILITY SENSATIONALLY SITUATIONALLY SPERMATICALLY SPREADABILITY STAPHYLINIDAE STATISTICALLY STAYCATIONERS STIGMATICALLY STRAIGHTAWAYS STRAITLACEDLY STRATEGICALLY SUBSTANTIALLY SYBARITICALLY SYCOPHANTICAL SYLLABICATING SYLLABICATION SYMPATHETICAL SYMPATRICALLY SYMPTOMATICAL SYNAESTHESIAS SYNALLAGMATIC SYNAPOSEMATIC SYNARTHRODIAL SYNTACTICALLY SYNTACTICIANS SYNTAGMATITES SYSTEMATICIAN TACHYGRAPHIES TACHYGRAPHIST TACHYMETRICAL TACHYPHRASIAS TACHYPHYLAXIS TANGENTIALITY TANTALISINGLY TANTALIZINGLY TAUTOSYLLABIC TAXONOMICALLY TETRABASICITY TETRASYLLABIC THEATRICALITY THRASONICALLY TRADITIONALLY TRANSEXUALITY TRANSITIONARY TRANSMITTANCY TRANSPIRATORY TRAUMATICALLY TRIANGULARITY TRIANGULATELY TRIATOMICALLY TRICARPELLARY TRISYLLABICAL TRYPAFLAVINES TRYPARSAMIDES TYPOGRAPHICAL TYRANNOSAURID ULTRAPHYSICAL ULTRAROYALIST UNFAMILIARITY UNILATERALITY UNIPARENTALLY UNMISTAKEABLY UNPRACTICALLY UNREADABILITY UNSALEABILITY UNSUSTAINABLY UPGRADABILITY VACILLATINGLY VALUATIONALLY VAPOURABILITY VARIATIONALLY VERNACULARITY YACHTSMANSHIP ZEUGMATICALLY