There are 470 fourteen-letter words containing 2A, N, T and U, https://www.bestwordlist.com/c/a/5/14letterwordswithaantu.htm ABSQUATULATING ACCENTUALITIES ACCOUNTABILITY ACCOUNTANTSHIP ACCULTURATIONS ACCURATENESSES ACCUSTOMATIONS ACTINOBACILLUS ACTINOURANIUMS ACTUALISATIONS ACTUALIZATIONS ADEQUATENESSES ADIATHERMANOUS ADMEASUREMENTS ADMINICULATING ADVANTAGEOUSLY AERENCHYMATOUS AERONAUTICALLY AGGLUTINATIONS AGROINDUSTRIAL ALTITUDINARIAN AMARANTHACEOUS AMATEURISHNESS ANARTHROUSNESS ANGIOSTOMATOUS ANGUSTIFOLIATE ANISODACTYLOUS ANNUITISATIONS ANNUITIZATIONS ANTEDILUVIALLY ANTEPENULTIMAS ANTHRAQUINONES ANTHROPOPHAGUS ANTIBARBARUSES ANTICOAGULANTS ANTICONVULSANT ANTIGUERRILLAS ANTIHOMOSEXUAL ANTIHUMANISTIC ANTINUCLEARIST ANTIQUARIANISM ANTIQUATEDNESS ANTIQUITARIANS ANTIREGULATORY ANTIREPUBLICAN ANTIRHEUMATICS ANTIRITUALISMS ANTISCRIPTURAL ANTITUBERCULAR ANTONINIANUSES APPROPINQUATED APPROPINQUATES ARGUMENTATIONS ARMAMENTARIUMS ARTICULATENESS ASSAULTIVENESS ATTITUDINARIAN AUDIOMETRICIAN AUGMENTATIVELY AUTHENTICATING AUTHENTICATION AUTHENTICATORS AUTHORISATIONS AUTHORITARIANS AUTHORIZATIONS AUTOANTIBODIES AUTOCATALYSING AUTOCATALYZING AUTOIONISATION AUTOIONIZATION AUTOMATISATION AUTOMATIZATION AVERRUNCATIONS AVUNCULARITIES BEAUTIFICATION BIOACOUSTICIAN BIOAERONAUTICS BRUTALISATIONS BRUTALIZATIONS CALAMITOUSNESS CALCULATEDNESS CANTANKEROUSLY CARBURISATIONS CARBURIZATIONS CASUALISATIONS CASUALIZATIONS CATECHUMENATES CATECHUMENICAL CAUTERISATIONS CAUTERIZATIONS CHATEAUBRIANDS CIRCUMNAVIGATE CIRCUMSTANTIAL CLAIRAUDIENTLY COASTGUARDSMAN COASTGUARDSMEN COMMUNAUTAIRES COMMUNITARIANS CONFABULATIONS CONGRATULATING CONGRATULATION CONGRATULATIVE CONGRATULATORS CONGRATULATORY CONNATURALISED CONNATURALISES CONNATURALIZED CONNATURALIZES CONNATURALNESS CONSTABULARIES CONSUBSTANTIAL CONTRAPUNTALLY COUNTERASSAULT COUNTERATTACKS COUNTERBALANCE COUNTERFACTUAL CYANOBACTERIUM CYCLANTHACEOUS DEARTICULATING DECAPSULATIONS DECARBURATIONS DEGRANULATIONS DEHUMANISATION DEHUMANIZATION DENATURALISING DENATURALIZING DIAMANTIFEROUS DISAMBIGUATING DISAMBIGUATION DISNATURALISED DISNATURALISES DISNATURALIZED DISNATURALIZES DOCUMENTARIANS EDUCATIONALIST ELEUTHEROMANIA ENCAPSULATIONS ENTHUSIASTICAL EQUIANGULARITY EXCLAUSTRATION EXSANGUINATING EXSANGUINATION EXTRAFORANEOUS FASCICULATIONS FATIGUABLENESS FEUDALISATIONS FEUDALIZATIONS FLUNITRAZEPAMS FOUNDATIONALLY FRUITARIANISMS FUNAMBULATIONS FUNDAMENTALISM FUNDAMENTALIST FUNDAMENTALITY GASTRODUODENAL GRANDDAUGHTERS GRATICULATIONS HABITUALNESSES HAEMAGGLUTININ HALLUCINATIONS HARUSPICATIONS HEADQUARTERING HEMAGGLUTINATE HUMANISTICALLY ICHTHYOSAURIAN ILLUMINATIONAL ILLUSTRATIONAL IMMACULATENESS IMMUNOASSAYIST INACCURATENESS INADEQUATENESS INARTICULACIES INARTICULATELY INARTICULATION INCAPSULATIONS INTERAMBULACRA INTERJACULATED INTERJACULATES INTRACUTANEOUS INTRAMEDULLARY INTRAMERCURIAL INTRAMOLECULAR INTRANSMUTABLE JOURNALISATION JOURNALIZATION LATITUDINARIAN MACROMUTATIONS MALADJUSTMENTS MANIPULABILITY MANIPULATIVELY MANUFACTURABLE MANUFACTURINGS MATRICULATIONS MINICALCULATOR MISCALCULATING MISCALCULATION MISCATALOGUING MISEVALUATIONS MONOUNSATURATE MOUNTAINBOARDS MULLIGATAWNIES MULTICANDIDATE MULTINATIONALS MUSICALISATION MUSICALIZATION MUTUALISATIONS MUTUALIZATIONS NATURALISATION NATURALIZATION NEURASTHENIACS NEUROANATOMIES NEUROANATOMIST NEUROBLASTOMAS NEUROFIBROMATA NEUTRALISATION NEUTRALIZATION NOCTAMBULATION NONACCOUNTABLE NONBARBITURATE NONCONTRACTUAL NONEDUCATIONAL NONSPECTACULAR NONUTILITARIAN NUCLEARISATION NUCLEARIZATION NUDIBRANCHIATE NUMISMATICALLY NUTRACEUTICALS NYCTAGINACEOUS OCCUPATIONALLY OUTMANIPULATED OUTMANIPULATES OVERABUNDANTLY OVERACCENTUATE OVEREVALUATING OVEREVALUATION OVERSATURATING OVERSATURATION OVERVALUATIONS PALAEOCURRENTS PANDICULATIONS PANSEXUALITIES PARALINGUISTIC PARAMENSTRUUMS PARANTHROPUSES PARENCHYMATOUS PARTICULARNESS PARTURIFACIENT PASTEURISATION PASTEURIZATION PAUPERISATIONS PAUPERIZATIONS PENNATULACEOUS PENTADACTYLOUS PERAMBULATIONS PERTURBATIONAL PHONAUTOGRAPHS PLURALISATIONS PLURALIZATIONS POLYUNSATURATE POPULARISATION POPULARIZATION POSTAMPUTATION POSTGRADUATION POSTMENOPAUSAL PREACQUAINTING PREDEVALUATION PREMANUFACTURE PROTOLANGUAGES QUADRIGEMINATE QUAESTIONARIES QUALIFICATIONS QUANTIFICATION QUANTITATIVELY QUANTIVALENCES QUARTERBACKING QUARTODECIMANS QUODLIBETARIAN REACQUAINTANCE REARTICULATING REARTICULATION RECALCULATIONS RECAPITULATING RECAPITULATION RECTANGULARITY REGULARISATION REGULARIZATION REHUMANIZATION REMANUFACTURED REMANUFACTURER REMANUFACTURES RESTAURANTEURS RITUALISATIONS RITUALIZATIONS SALUTARINESSES SANGUIFICATION SAUROPTERYGIAN SECULARISATION SECULARIZATION SENSUALISATION SENSUALIZATION SEPTUAGENARIAN SEPTUAGENARIES SEXUALISATIONS SEXUALIZATIONS SLANTENDICULAR SLANTINDICULAR SOLITUDINARIAN SOMNAMBULATING SOMNAMBULATION SOMNAMBULATORS STRANGULATIONS STRATICULATION SUBAGGREGATION SUBALLOCATIONS SUBALTERNATION SUBASSOCIATION SUBSATURATIONS SUBSTANTIALISE SUBSTANTIALISM SUBSTANTIALIST SUBSTANTIALITY SUBSTANTIALIZE SUBSTANTIATING SUBSTANTIATION SUBSTANTIATIVE SUBSTANTIATORS SUBSTANTIVALLY SUBTERRANEANLY SULFAMETHAZINE SUMMARISATIONS SUMMARIZATIONS SUPERANNUATING SUPERANNUATION SUPERNATATIONS SUPERNATURALLY SUPERTERRANEAN SUPPLANTATIONS SUPRASEGMENTAL SUSTAINABILITY TABULARISATION TABULARIZATION TEXTUALIZATION THAUMATOGENIES TINTINNABULANT TINTINNABULARY TINTINNABULATE TRADUCIANISTIC TRANSCAUCASIAN TRANSCUTANEOUS TRANSDUCTIONAL TRANSEXUALISMS TRANSMUTATIONS TRANSSEXUALISM TRANSSEXUALITY TRANSVALUATING TRANSVALUATION TRAUMATISATION TRAUMATIZATION TRIANGULATIONS TURANGAWAEWAES TYRANNOSAURIDS ULTRAMARATHONS ULTRAMASCULINE ULTRAMILITANTS ULTRAMINIATURE ULTRAMONTANISM ULTRAMONTANIST ULTRAROMANTICS ULTRASONICALLY ULTRAWIDEBANDS UNACCLIMATISED UNACCLIMATIZED UNACCOMMODATED UNACCULTURATED UNACQUAINTANCE UNADAPTABILITY UNAFFECTIONATE UNALTERABILITY UNAMBIVALENTLY UNAMIABILITIES UNAPPRECIATION UNAPPRECIATIVE UNAPPROPRIATED UNAPPROPRIATES UNARTIFICIALLY UNATHLETICALLY UNATTRACTIVELY UNATTRIBUTABLE UNATTRIBUTABLY UNAVAILABILITY UNAVOIDABILITY UNBUREAUCRATIC UNCONTAMINATED UNCULTIVATABLE UNDERGRADUATES UNDERSATURATED UNDERSTANDABLE UNDERSTANDABLY UNDERVALUATION UNDIDACTICALLY UNDOGMATICALLY UNDRAMATICALLY UNEMPHATICALLY UNFLAMBOYANTLY UNFLAPPABILITY UNFRACTIONATED UNICAMERALISTS UNIFORMITARIAN UNILATERALISMS UNILATERALISTS UNINGRATIATING UNINHABITABLES UNIVERSITARIAN UNMAINTAINABLE UNMALLEABILITY UNMANUFACTURED UNMATERIALISED UNMATERIALIZED UNMATHEMATICAL UNMATRICULATED UNMERCHANTABLE UNMETAPHORICAL UNMETAPHYSICAL UNNATURALISING UNNATURALIZING UNPALATABILITY UNPEDANTICALLY UNPLEASANTNESS UNPLEASANTRIES UNPRACTICALITY UNQUANTIFIABLE UNQUANTIFIABLY UNRECAPTURABLE UNRESTRAINABLE UNROMANTICALLY UNSALABILITIES UNSATISFACTION UNSATISFACTORY UNSECTARIANISM UNSTANDARDISED UNSTANDARDIZED UNSYSTEMATICAL UNTAMEABLENESS UNTRANSFERABLE UNTRANSLATABLE UNTRANSLATABLY UNTRANSMUTABLE URALITISATIONS URALITIZATIONS URANOGRAPHISTS URBANISTICALLY UTILITARIANISE UTILITARIANISM UTILITARIANIZE VACUOLISATIONS VACUOLIZATIONS VALETUDINARIAN VALETUDINARIES VERNACULARISTS VIRTUALISATION VIRTUALIZATION VISUALISATIONS VISUALIZATIONS VULCANISATIONS VULCANIZATIONS VULGARISATIONS VULGARIZATIONS WELTANSCHAUUNG XANTHOMELANOUS