There are 448 thirteen-letter words containing 2A, 2E and I, https://www.bestwordlist.com/c/a/5/13letterwordswithaaeei.htm
ABBREVIATURES ACCELERATIONS ACCESSARINESS ACETAMINOPHEN ACETAZOLAMIDE
ACINETOBACTER ADMIRABLENESS ADVERBIALISED ADVERBIALISES ADVERBIALIZED
ADVERBIALIZES ADVERSARINESS ADVERSATIVELY ADVISABLENESS AEROMECHANICS
AESTHETICALLY AESTHETICIANS AGAMOSPERMIES AGGLOMERATIVE AGGREGATIVELY
ALDERMANITIES ALDERMANLIEST ALKALIMETRIES ALLELOPATHIES ALPHABETISERS
ALPHABETIZERS ALSTROEMERIAS ALTERNATIVELY AMATIVENESSES AMBIVALENCIES
AMENABILITIES AMIABLENESSES AMPHITHEATERS AMPHITHEATRES ANAESTHETISED
ANAESTHETISES ANAESTHETISTS ANAESTHETIZED ANAESTHETIZES ANATHEMATISED
ANATHEMATISES ANATHEMATIZED ANATHEMATIZES ANEMOGRAPHIES ANEMOMETRICAL
ANENCEPHALIAS ANENCEPHALIES ANGELOLATRIES ANGELOPHANIES ANIMADVERTERS
ANIMATENESSES ANNIVERSARIES ANTEPENULTIMA ANTICIGARETTE ANTIMARKETEER
ANTIMETABOLES ANTIPLATELETS ANTISATELLITE APOTHEGMATISE APOTHEGMATIZE
APPEALINGNESS APPELLATIVELY APPENDICULATE APPERTAINANCE APPERTAINMENT
APPRAISEMENTS AQUAFITNESSES ARAEOMETRICAL ARCHAEOLOGIES ARCHAEOMETRIC
ARCHAEORNISES ARCHEGONIATES ARCHIPELAGOES ARGUMENTATIVE ARSPHENAMINES
ASCERTAINABLE ASCERTAINMENT ASSEVERATIONS AUDIOCASSETTE AUGMENTATIVES
AUTHENTICATED AUTHENTICATES AUTOCEPHALIES AUTOSCHEDIAZE AVAILABLENESS
BACTERIOPHAGE BARAESTHESIAS BEARABILITIES BIODEGRADABLE BUREAUCRACIES
BUREAUCRATISE BUREAUCRATIZE CABINETMAKERS CALEFACTORIES CANCELLARIATE
CAPERCAILLIES CAPERCAILZIES CARBAMAZEPINE CARNIVALESQUE CARRAGHEENINS
CATECHOLAMINE CATEGOREMATIC CATEGORIZABLE CAUSATIVENESS CHARACTERISED
CHARACTERISER CHARACTERISES CHARACTERIZED CHARACTERIZER CHARACTERIZES
CLAIRAUDIENCE COADJACENCIES COENAESTHESIA COLLATERALISE COLLATERALIZE
COPARCENARIES CYANOGENAMIDE DATAVEILLANCE DEARTICULATED DEARTICULATES
DECAFFEINATED DECAFFEINATES DECAPITALISED DECAPITALISES DECAPITALIZED
DECAPITALIZES DECLARATIVELY DECONTAMINATE DEFAMILIARIZE DEMATERIALISE
DEMATERIALIZE DENATIONALISE DENATIONALIZE DENATURALISED DENATURALISES
DENATURALIZED DENATURALIZES DEPAUPERATING DEREALISATION DEREALIZATION
DETERMINANTAL DEUTERANOPIAS DIAPHANEITIES DIAPHANOMETER DIATHERMACIES
DIAZOMETHANES DIEFFENBACHIA DILATABLENESS DISAGGREGATED DISAGGREGATES
DISAGREEABLES DISAPPARELLED DISAPPEARANCE DISCHARGEABLE DISPARAGEMENT
DISPARATENESS DISPLEASANCES DISPLEASANTED DRAGGLETAILED DYSAESTHESIAS
ECTOPARASITES ELABORATORIES ELEPHANTIASES ELEPHANTIASIC ELEPHANTIASIS
ENCEPHALALGIA ENCYCLOPAEDIA ENDOPARASITES ENSANGUINATED EPANADIPLOSES
EPICHEIREMATA EPIGRAMMATISE EPIGRAMMATIZE EPITHELIOMATA EQUILATERALLY
ERASABILITIES ERGATOCRACIES ESTABLISHABLE ETHANOLAMINES ETHEROMANIACS
EUPHAUSIACEAN EUSPORANGIATE EVANGELARIUMS EVANGELIARIES EVANGELIARION
EVANGELIARIUM EVANGELICALLY EVANGELISTARY EXACERBATIONS EXAGGERATIONS
EXASPERATIONS EXPECTATIONAL EXPLANATIVELY EXSANGUINATED EXSANGUINATES
EXTRALITERARY EXTRAMETRICAL EXTRAPOLATIVE FATIGABLENESS FEATHERBRAINS
FORECARRIAGES GAMOGENETICAL GENERALISABLE GENERALIZABLE GENTIANACEOUS
HABITABLENESS HAEMATOLOGIES HAEMODIALYSER HAEMODIALYSES HAEMODIALYZER
HARLEQUINADES HEARTBREAKING HEBDOMADARIES HEMIPARASITES HEPTADECANOIC
HEPTAMETRICAL HEREDITARIANS HETEROPLASIAS HIEROGRAMMATE HYPAESTHESIAS
HYPERALGESIAS HYPERCALCEMIA HYPERPARASITE HYPERVARIABLE IMMATERIALISE
IMMATERIALIZE IMPREGNATABLE INANIMATENESS INAPPRECIABLE INCAPABLENESS
INDEFATIGABLE INELABORATELY INEXPLAINABLE INSATIATENESS INTERCALARIES
INTERCALATIVE INTERJACULATE INTERLAMINATE INTERMARRIAGE INTERMAXILLAE
INTERPARIETAL INTRACEREBRAL INTRAVERSABLE IRRECLAIMABLE IRREPLACEABLE
IRREPLACEABLY JAPONAISERIES KINAESTHESIAS LAUREATESHIPS LEISHMANIASES
LOGODAEDALIES MADRIGALESQUE MANIFESTATIVE MARTIALNESSES MATERIALISERS
MATERIALITIES MATERIALIZERS MATHEMATICISE MATHEMATICIZE MECAMYLAMINES
MEDIAEVALISMS MEDIAEVALISTS MEDICAMENTARY MEDITERRANEAN MEGACEPHALIES
MELODRAMATISE MELODRAMATIZE MESATICEPHALY METABOLISABLE METABOLIZABLE
METACERCARIAE METACERCARIAL METACERCARIAS METAGRABOLISE METAGRABOLIZE
METAMATERIALS METAMERICALLY METANARRATIVE METASILICATES MICROWAVEABLE
MINERALISABLE MINERALIZABLE MISAPPRECIATE MISDEMEANANTS MISMANAGEMENT
MULTICAMERATE NAVIGABLENESS NECESSITARIAN NEURAMINIDASE NEURASTHENIAC
NEURASTHENIAS NEWSMAGAZINES NONEVALUATIVE NONVEGETARIAN NORADRENALINE
OLEOMARGARINE OVERDRAMATISE OVERDRAMATIZE OVERTALKATIVE PALAEOCLIMATE
PALEOBOTANIES PALEOGRAPHIES PALEOMAGNETIC PALINGENESIAS PANAESTHESIAS
PANAESTHETISM PANLEUCOPENIA PANLEUKOPENIA PANRADIOMETER PARAESTHESIAS
PARALEIPOMENA PARAMETERISED PARAMETERISES PARAMETERIZED PARAMETERIZES
PARENTHETICAL PARTIALNESSES PATRILINEAGES PEDICELLARIAE PENEPLANATION
PERIPATETICAL PHAEOMELANINS PHALANSTERIES PHENARSAZINES PHENYLALANINE
PLANETESIMALS PRAEDIALITIES PRAEFECTORIAL PREACQUAINTED PREDICAMENTAL
PREECLAMPSIAS PREFABRICATED PREFABRICATES PREPARATIVELY PRIVATEERSMAN
PROLETARIATES QUADRIVALENCE QUANTIVALENCE RADICALNESSES RADIESTHESIAS
RADIOLABELLED RADIOTELEGRAM RAMAPITHECINE RATEABILITIES RATTLEBRAINED
REACCLIMATISE REACCLIMATIZE REACTIONARIES READABILITIES READMITTANCES
REAGGREGATING REAGGREGATION REANNEXATIONS REAPPARELLING REAPPROPRIATE
REARTICULATED REARTICULATES REATTAINMENTS REBARBATIVELY RECALCITRANCE
RECALCITRATED RECALCITRATES RECAPITALISED RECAPITALISES RECAPITALIZED
RECAPITALIZES RECAPITULATED RECAPITULATES RECONTAMINATE REESCALATIONS
REEVALUATIONS REEXAMINATION REHABILITATED REHABILITATES REMATERIALISE
REMATERIALIZE RENATIONALISE RENATIONALIZE REPEATABILITY REVEALABILITY
RHINENCEPHALA SACCHARIMETER SACERDOTALISE SACERDOTALIZE SACRIFICEABLE
SALEABILITIES SANDPAPERIEST SCHIZAEACEOUS SEASONALITIES SECRETARIATES
SECTARIANISED SECTARIANISES SECTARIANIZED SECTARIANIZES SEGREGATIONAL
SEMIAUTOMATED SEMICARBAZIDE SEMICARBAZONE SEMIPARASITES SERASKIERATES
SESQUIALTERAS SEXAGENARIANS SEXAGESIMALLY SOMAESTHESIAS SPEARCARRIERS
STATESMANLIER STATESMANLIKE STRATEGETICAL SULFACETAMIDE SYNAESTHESIAS
TALKATIVENESS TAMEABILITIES TAPSALTEERIES TELAESTHESIAS TELEGRAMMATIC
TELEOSAURIANS THEATRICALISE THEATRICALIZE THEOREMATICAL THERAPEUTICAL
THIABENDAZOLE TRADESMANLIKE TRAILBREAKERS TRANSLITERATE ULTRAHEAVIEST
ULTRARAREFIED ULTRARELIABLE UNABBREVIATED UNAMIABLENESS UNAPPRECIATED
UNASCERTAINED UNDERCARRIAGE UNDERDRAINAGE UNEVANGELICAL UNEXPLAINABLE
UNIMPEACHABLE UNMISTAKEABLE UNRECLAIMABLE VALIANTNESSES VAUDEVILLEANS
VEGETARIANISM VERNACULARISE VERNACULARIZE VETERINARIANS VRAISEMBLANCE
WAISTCOATEERS WEARABILITIES ZANTEDESCHIAS