There are 476 thirteen-letter words containing A, C, D, N and T, https://www.bestwordlist.com/c/a/5/13letterwordswithacdnt.htm ACCIDENTALISM ACCIDENTALITY ACCIDENTOLOGY ACCOMMODATING ACCOMMODATION ACCORDIONISTS ACCREDITATION ACIDIFICATION ACOTYLEDONOUS ADDICTIVENESS ADENOIDECTOMY ADIATHERMANCY ADJUDICATIONS ADMINICULATED ADMINICULATES ADRENALECTOMY ADRENOCEPTORS ADVENTURISTIC ANAPHYLACTOID ANDROCENTRISM ANECDOTALISMS ANECDOTALISTS ANECDOTICALLY ANTIDESICCANT ANTIDIABETICS ANTIDIURETICS ANTIPERIODICS ANTIPESTICIDE ANTISPASMODIC APPENDICULATE ARACHNOIDITIS ARCHIMANDRITE ASTRODYNAMICS ASYNDETICALLY AUTHENTICATED BACKWARDATION BENEDICTIONAL BICONDITIONAL BIDIRECTIONAL BIRDWATCHINGS BODYSNATCHERS BROADCASTINGS CANALICULATED CANDIDATESHIP CANDLELIGHTED CANDLELIGHTER CARCINOMATOID CARDINALATIAL CARDINALITIAL CARDINALITIES CATERCORNERED CENTUPLICATED CHATEAUBRIAND CHONDROBLASTS CHONDROMATOUS CHONDROSTIANS CIRCUMNUTATED CIRCUMSTANCED CLAIRAUDIENTS CLANDESTINELY CLANDESTINITY CLAUDICATIONS COADAPTATIONS COADMINISTERS COASTGUARDMAN COASTGUARDMEN CODECLINATION CODIFICATIONS COEDUCATIONAL COLOQUINTIDAS COMMENDATIONS COMPACTEDNESS COMPARTMENTED CONCELEBRATED CONCORPORATED CONDEMNATIONS CONDENSATIONS CONDITIONABLE CONDITIONALLY CONDITIONATED CONDITIONATES CONDYLOMATOUS CONFEDERATING CONFEDERATION CONFEDERATIVE CONGLOBULATED CONGLOMERATED CONGLUTINATED CONGRATULATED CONQUISTADORS CONSERVATISED CONSERVATIZED CONSIDERATELY CONSIDERATION CONSIDERATIVE CONSOLIDATING CONSOLIDATION CONSOLIDATIVE CONSOLIDATORS CONSTRAINEDLY CONTAINERISED CONTAINERIZED CONTRABANDISM CONTRABANDIST CONTRADICTERS CONTRADICTING CONTRADICTION CONTRADICTIVE CONTRADICTORS CONTRADICTORY CONTRITURATED COORDINATIONS CORESIDENTIAL COSTARDMONGER COTRANSDUCING COTRANSFERRED COTRANSPORTED COUNTERARGUED COUNTERBRACED COUNTERDEMAND COUNTERMANDED COUNTERPLAYED COUNTERPLEADS COUNTERRAIDED COUNTERSEALED COUNTERSTATED COUNTERTRADED COUNTERTRADES COUNTERVAILED CREDENTIALING CREDENTIALISM CREDENTIALLED CUSTODIANSHIP CYCLANDELATES CYCLOADDITION CYTODIAGNOSES CYTODIAGNOSIS DACTYLIOMANCY DAMNIFICATION DANDIFICATION DATAVEILLANCE DEACTIVATIONS DECAFFEINATED DECAFFEINATES DECAMETHONIUM DECAPITATIONS DECAPSULATING DECAPSULATION DECARBONATING DECARBONATION DECARBONATORS DECARBURATION DECARTELISING DECARTELIZING DECELERATIONS DECENTRALISED DECENTRALISES DECENTRALISTS DECENTRALIZED DECENTRALIZES DECEREBRATING DECEREBRATION DECHLORINATED DECHLORINATES DECLINATIONAL DECLINATORIES DECOLORATIONS DECOMPENSATED DECOMPENSATES DECONCENTRATE DECONGESTANTS DECONSECRATED DECONSECRATES DECONTAMINANT DECONTAMINATE DECORTICATING DECORTICATION DECREPITATING DECREPITATION DECRUSTATIONS DECUMULATIONS DEDUPLICATING DEDUPLICATION DEFLOCCULANTS DEFORCIATIONS DEGLACIATIONS DELICATESSENS DELIRIFACIENT DEMOCRATISING DEMOCRATIZING DENDRITICALLY DENSIFICATION DENTICULATELY DENTICULATION DENUNCIATIONS DEONTOLOGICAL DEPRECATINGLY DEPRECIATIONS DERACINATIONS DESANCTIFYING DESTRUCTIONAL DETERMINACIES DETOXICATIONS DETRUNCATIONS DIACATHOLICON DIACHRONISTIC DIAGNOSTICIAN DIALECTICIANS DIBRANCHIATES DICTYOPTERANS DIFUNCTIONALS DIGNIFICATION DIJUDICATIONS DILACERATIONS DILUCIDATIONS DISAFFECTIONS DISCEPTATIONS DISCIPLINANTS DISCLAMATIONS DISCOLORATION DISCRETIONARY DISCRIMINANTS DISCRIMINATED DISCRIMINATES DISCRIMINATOR DISENCHANTERS DISENCHANTING DISENTRANCING DISFUNCTIONAL DISINFECTANTS DISINTOXICATE DISINTRICATED DISINTRICATES DISPLACEMENTS DISSOCIATIONS DISTRACTINGLY DIVARICATIONS DIVELLICATING DOCTRINAIRISM DOCTRINARIANS DOCTRINARISMS DOCUMENTALIST DOCUMENTARIAN DOCUMENTARIES DOCUMENTARILY DOCUMENTARISE DOCUMENTARIST DOCUMENTARIZE DOCUMENTATION DODECAPHONIST DOMESTICATING DOMESTICATION DOMICILIATING DOMICILIATION DOOMWATCHINGS DOSIMETRICIAN DULCIFICATION DYSFUNCTIONAL EDUCATIONALLY EDUCATIONESES EDUCATIONISTS EDULCORATIONS ENANTIODROMIC ENCHONDROMATA ENDOLYMPHATIC ENDOPARASITIC ENTERCHAUNGED EQUIDISTANCES EUDAEMONISTIC EUDAIMONISTIC FACTIONALISED FACTIONALIZED FANTASTICATED FICTIONALISED FICTIONALIZED GEODYNAMICIST GONADECTOMIES GONADOTROPHIC GRANODIORITIC HANDCRAFTSMAN HANDCRAFTSMEN HANDICRAFTERS HEPTADECANOIC HEXACTINELLID HYDNOCARPATES HYDROMAGNETIC ICHTHYOPSIDAN IDENTICALNESS IDIOMATICNESS IDIOSYNCRATIC IDIOTICALNESS INADVERTENCES INCANDESCENTS INCAPACITATED INCARDINATING INCARDINATION INCONSIDERATE INDETERMINACY INDOCTRINATED INDOCTRINATES INDOCTRINATOR INDOMETHACINS INDUPLICATION INEDUCABILITY INEXACTITUDES INTERCOMPARED INTERPANDEMIC INTOXICATEDLY MACHAIRODONTS MALFUNCTIONED MATCHBOARDING MEDICAMENTARY MEDICAMENTING MEDICAMENTOUS MISADVERTENCE MISEDUCATIONS MISPUNCTUATED MITOCHONDRIAL MODIFICATIONS MONODACTYLOUS MONONUCLEATED MULTIBRANCHED MULTIPLICANDS MUNDIFICATION MUNDIFICATIVE NICOTINAMIDES NIDIFICATIONS NONACCIDENTAL NONACCREDITED NONASSOCIATED NONATTENDANCE NONBROADCASTS NONCANDIDATES NONCONJUGATED NONCULTIVATED NONDEMOCRATIC NONDETACHABLE NONDIPLOMATIC NONEDUCATIONS NONINDICTABLE NONINTERLACED NUCLEOTIDASES OCCIDENTALISE OCCIDENTALISM OCCIDENTALIST OCCIDENTALIZE ODONTOBLASTIC ODONTOLOGICAL OUTDISTANCING OUTRECUIDANCE OVEREDUCATING OVEREDUCATION PAEDIATRICIAN PANDICULATION PARCHMENTISED PARCHMENTIZED PEDANTICISING PEDANTICIZING PEDANTOCRATIC PEDIATRICIANS PEDICULATIONS PEDUNCULATION PENTACRINOIDS PENTADACTYLES PENTADACTYLIC PEPTIDOGLYCAN PHOTODYNAMICS POSTSECONDARY PREACQUAINTED PREADOLESCENT PRECONTRACTED PREDICAMENTAL PREJUDICATING PREJUDICATION PREMEDICATING PREMEDICATION PRESANCTIFIED PRIVATDOCENTS QUADRISECTING QUADRISECTION QUARTODECIMAN QUINDECAPLETS RADIOLOCATION REACCREDITING READMITTANCES RECENTRALIZED RECONSECRATED RECONSOLIDATE REDECORATIONS REDEDICATIONS REDUPLICATING REDUPLICATION REVENDICATING REVENDICATION REVINDICATING REVINDICATION SECTARIANISED SECTARIANIZED SECTIONALISED SECTIONALIZED SHADOWCASTING SOUNDTRACKING STICKHANDLERS STICKHANDLING SUBADOLESCENT SUBCONTRACTED SUBDEACONATES SUBDIACONATES SUBINDICATING SUBINDICATION SUBINDICATIVE SYCOPHANTISED SYCOPHANTIZED SYNDACTYLISMS SYNDICALISTIC TECHNICALISED TECHNICALIZED TETRADRACHMON THENCEFORWARD THERMODYNAMIC TRADESCANTIAS TRADUCIANISMS TRADUCIANISTS TRANSACTINIDE TRANSCENDENCE TRANSCENDENCY TRANSCENDENTS TRANSDUCTANTS TRANSDUCTIONS TRANSLUCIDITY TRICHOMONADAL TURACOVERDINS ULTRADISTANCE UNACCENTUATED UNADJUDICATED UNANTICIPATED UNAPPRECIATED UNARTICULATED UNASCERTAINED UNCAPITALISED UNCAPITALIZED UNCHLORINATED UNCHRISTIANED UNCOMPENSATED UNCOMPLICATED UNCONDITIONAL UNCONSECRATED UNCONSTRAINED UNCONSUMMATED UNCOORDINATED UNCREATEDNESS UNDEPRECIATED UNDERACTIVITY UNDERCOATINGS UNDEREDUCATED UNDERREACTING UNDERREACTION UNDIALECTICAL UNDISSOCIATED UNDISTRACTING UNDOCTRINAIRE UNDOMESTICATE UNPLASTICISED UNPLASTICIZED UNPREDICTABLE UNPREDICTABLY UNSTERCORATED VACATIONLANDS VALEDICTORIAN VINDICABILITY VINDICATORILY WATCHDOGGINGS WOODCRAFTSMAN WOODCRAFTSMEN XANTHOCHROIDS ZANTEDESCHIAS