There are 467 fourteen-letter words containing A, C, N, P and T, https://www.bestwordlist.com/c/a/5/14letterwordswithacnpt.htm
ACCEPTABLENESS ACCEPTILATIONS ACCOMPANIMENTS ACCOMPLISHMENT ACCOUNTANTSHIP
ACETAMINOPHENS ACTINOMORPHIES ACTINOMORPHOUS ACUPUNCTURINGS ACUPUNCTURISTS
AMPLIFICATIONS ANTAPHRODISIAC ANTHROPOMETRIC ANTHROPOPATHIC ANTHROPOPHAGIC
ANTHROPOPHOBIC ANTHROPOSOPHIC ANTICAPITALISM ANTICAPITALIST ANTICENSORSHIP
ANTICIPATIVELY ANTICIPATORILY ANTICORRUPTION ANTIEPILEPTICS ANTINEOPLASTIC
ANTINEPHRITICS ANTIPARASITICS ANTIPATHETICAL ANTIPHLOGISTIC ANTIPHONICALLY
ANTIPHRASTICAL ANTIPSYCHIATRY ANTIPSYCHOTICS ANTIREPUBLICAN ANTISCRIPTURAL
ANTISEPTICALLY ANTISEPTICISED ANTISEPTICISES ANTISEPTICISMS ANTISEPTICIZED
ANTISEPTICIZES ANTISPASMODICS ANTISYPHILITIC APPENDECTOMIES APPENDICECTOMY
APPENDICITISES APPERTAINANCES APPRENTICEHOOD APPRENTICEMENT APPRENTICESHIP
ASTHENOSPHERIC BRONCHOSPASTIC CALCIPOTRIENES CAMPANOLOGISTS CANDIDATESHIPS
CAPITALISATION CAPITALIZATION CAPRIFICATIONS CAPTIOUSNESSES CARPETBAGGINGS
CATECHUMENSHIP CENTRIPETALISM CENTUPLICATING CENTUPLICATION CEPHALISATIONS
CEPHALIZATIONS CHAPTALISATION CHAPTALIZATION CHIEFTAINSHIPS CHRISTOPHANIES
CINEMATOGRAPHS CINEMATOGRAPHY COCONSPIRATORS COMMANDANTSHIP COMPAGINATIONS
COMPARTMENTING COMPASSIONATED COMPASSIONATES COMPATIBLENESS COMPENSABILITY
COMPENSATIONAL COMPLEMENTALLY CONCEPTUALISED CONCEPTUALISER CONCEPTUALISES
CONCEPTUALISMS CONCEPTUALISTS CONCEPTUALIZED CONCEPTUALIZER CONCEPTUALIZES
CONCORPORATING CONDUPLICATION CONSCRIPTIONAL CONSPIRATIONAL CONSPIRATORIAL
CONSPURCATIONS CONSTABLESHIPS CONSTUPRATIONS CONSULTANTSHIP CONTAINERPORTS
CONTAINERSHIPS CONTEMPERATION CONTEMPERATURE CONTEMPLATIONS CONTEMPLATISTS
CONTEMPLATIVES CONTEMPORANEAN CONTEMPORARIES CONTEMPORARILY CONTRACEPTIONS
CONTRACEPTIVES CONTRAPOSITION CONTRAPOSITIVE CONTRAPUNTALLY CONTRAPUNTISTS
CONVERTAPLANES CONVERTIPLANES CONVERTOPLANES COOPERATIONIST COPARTNERSHIPS
COTEMPORANEOUS COTRANSPORTERS COTRANSPORTING COUNTEREXAMPLE COUNTERPARTIES
COUNTERPLANNED COUNTERPLAYERS COUNTERPLAYING COUNTERPLEADED CRAFTSMANSHIPS
CRANIOSCOPISTS CRYOPROTECTANT CUSTODIANSHIPS CYCLOPENTOLATE CYPROHEPTADINE
CYTOPATHOGENIC DECAPITALISING DECAPITALIZING DECAPSULATIONS DECOMPENSATING
DECOMPENSATION DECREPITATIONS DEDUPLICATIONS DEPRECIATINGLY DESPOTICALNESS
DISAPPLICATION DISCIPLINARITY DISCORPORATING DISINCORPORATE DODECAPHONISTS
ELECTROPLATING ELLIPTICALNESS EMPHATICALNESS ENANTIOMORPHIC ENCAPSULATIONS
ENCEPHALITIDES ENCEPHALITISES ENCEPHALITOGEN ENCEPHALOPATHY ENCOMPASSMENTS
ENCYCLOPAEDIST ENDOCRINOPATHY ENDOPHYTICALLY EPICONTINENTAL EPIGENETICALLY
EPITRACHELIONS ETHNOGRAPHICAL EUTROPHICATION EXCEPTIONALISM EXCEPTIONALIST
EXCEPTIONALITY EXPANSIONISTIC EXPECTORATIONS GALEOPITHECINE GALVANOPLASTIC
GEOPOLITICIANS HARUSPICATIONS HEPATOPANCREAS HYDROPNEUMATIC HYPERACUTENESS
HYPERROMANTICS HYPOCHONDRIAST HYPONASTICALLY HYPOTHECATIONS ICHTHYOPSIDANS
INAPPRECIATION INAPPRECIATIVE INCAPABILITIES INCAPACITATING INCAPACITATION
INCAPSULATIONS INCORPORATIONS INCORPOREALITY INDUPLICATIONS INEXPECTANCIES
INEXPECTATIONS INTERCOMPANIES INTERCOMPARING INTERCORPORATE INTERPAROCHIAL
INTERPUNCTUATE ISENTROPICALLY KERATINOPHILIC LAPIDIFICATION LARYNGOSCOPIST
LETTERSPACINGS LEUCOCYTOPENIA LEUKOCYTOPENIA LICENTIATESHIP LYCANTHROPISTS
MAGNETOSPHERIC MECHANOTHERAPY MERCAPTOPURINE METACOMPUTINGS METAPHYSICIANS
METENCEPHALONS MICROPLANKTONS MICROPULSATION MISACCEPTATION MISANTHROPICAL
MISAPPLICATION MISCOMPUTATION MISPUNCTUATING MISPUNCTUATION MULTIPLICATION
MUNICIPALITIES NANOCOMPOSITES NEOCAPITALISMS NEOCAPITALISTS NEOPLASTICISMS
NEOPLASTICISTS NONACCEPTANCES NONCAPITALISTS NONCOMPLICATED NONCOOPERATION
NONCOOPERATIVE NONCOOPERATORS NONIMPLICATION NONPARTICIPANT NONPOLITICALLY
NONPOLITICIANS NONPSYCHIATRIC NONSPECIALISTS NONSPECTACULAR NONSPECULATIVE
NONTHERAPEUTIC OCCUPATIONALLY ONYCHOPHAGISTS OPISTHOBRANCHS OPISTHOCOELIAN
OPSONIFICATION OVERCOMPENSATE PAEDIATRICIANS PAGANISTICALLY PALAEANTHROPIC
PALAEOCURRENTS PALAEOMAGNETIC PALEOBOTANICAL PALINGENETICAL PALMIFICATIONS
PANCHROMATISMS PANCREATECTOMY PANCREATITIDES PANCREATITISES PANDICULATIONS
PANGENETICALLY PANTISOCRACIES PANTISOCRATIST PANTOGRAPHICAL PANTOMIMICALLY
PANTOPRAGMATIC PARALINGUISTIC PARCHMENTISING PARCHMENTIZING PARENCHYMATOUS
PARONOMASTICAL PARTHENOCARPIC PARTICIPATIONS PARTICULARNESS PARTURIFACIENT
PECTINESTERASE PEDANTOCRACIES PEDUNCULATIONS PENICILLATIONS PENNATULACEOUS
PENTADACTYLIES PENTADACTYLISM PENTADACTYLOUS PENTAVALENCIES PEPTIDOGLYCANS
PERCUTANEOUSLY PERFECTIBILIAN PERFECTIONATED PERFECTIONATES PERLOCUTIONARY
PERSCRUTATIONS PERTINACIOUSLY PETRIFICATIONS PHALLOCENTRISM PHANTASMAGORIC
PHANTASMICALLY PHENOTYPICALLY PHLEGMATICNESS PHONEMATICALLY PHOSPHOCREATIN
PHOTOGENICALLY PHOTOREACTIONS PHTHALOCYANINE PHTHALOCYANINS PHYTOGENETICAL
PICTORIALISING PICTORIALIZING PICTURISATIONS PICTURIZATIONS PINEALECTOMIES
PINEALECTOMISE PINEALECTOMIZE PITHECANTHROPI PLACENTOLOGIES PLANETOLOGICAL
PLASTICISATION PLASTICIZATION PLATINOCYANIDE PLEBIFICATIONS PLECTOGNATHOUS
PLEONASTICALLY PNEUMATICITIES PNEUMOGASTRICS PNEUMOTHORACES POCOCURANTEISM
POCOCURANTISMS POCOCURANTISTS POETICALNESSES POLITICALISING POLITICALIZING
POLITICISATION POLITICIZATION POLLICITATIONS POLYCARBONATES PONTIFICATIONS
PORNIFICATIONS POSTADOLESCENT POSTGANGLIONIC PREACQUAINTING PREACQUISITION
PREADOLESCENTS PREANAESTHETIC PRECEDENTIALLY PRECIPITANCIES PRECIPITATIONS
PRECONISATIONS PRECONIZATIONS PRECONSONANTAL PRECONTRACTING PREFABRICATING
PREFABRICATION PREJUDICATIONS PREMANUFACTURE PREMEDICATIONS PREOCCUPATIONS
PREPUBLICATION PRESANCTIFYING PRETTIFICATION PREUNIFICATION PREVARICATIONS
PRINCIPALITIES PROCRASTINATED PROCRASTINATES PROCRASTINATOR PROGNOSTICATED
PROGNOSTICATES PROGNOSTICATOR PROJECTISATION PROJECTIZATION PROLIFICATIONS
PRONUCLEARISTS PRONUNCIAMENTO PRONUNCIATIONS PROPAGANDISTIC PROTOACTINIUMS
PROTRACTEDNESS PROTUBERANCIES PROVENTRICULAR PROVINCIALISTS PSYCHASTHENIAS
PSYCHASTHENICS PSYCHOANALYSTS PSYCHOANALYTIC PUNCTUATIONIST PUNDITOCRACIES
PUTRIFICATIONS PYROTECHNICIAN QUINTUPLICATED QUINTUPLICATES RAMAPITHECINES
RAPPROCHEMENTS REAPPLICATIONS RECAPITALISING RECAPITALIZING RECAPITULATING
RECAPITULATION RECIPROCATIONS RECOMPILATIONS RECOMPUTATIONS REDUPLICATIONS
REINCORPORATED REINCORPORATES REPUBLICATIONS REPUNCTUATIONS SAPONIFICATION
SCINTIGRAPHIES SCINTILLASCOPE SEXTUPLICATING SIMPLIFICATION SOPHISTICATING
SOPHISTICATION SPECIALISATION SPECIALIZATION SPECIFICATIONS SPECTRALNESSES
SPIFFLICATIONS SPINTHARISCOPE SPIRONOLACTONE SPONGIOBLASTIC STEEPLECHASING
STEGANOGRAPHIC STEGOCEPHALIAN STENOGRAPHICAL SUPPLICATINGLY SYCOPHANTISHLY
SYCOPHANTISING SYCOPHANTIZING SYCOPHANTLIEST TECHNOGRAPHIES TECHNOPOLITANS
TELENCEPHALONS TELEPHONICALLY THERIANTHROPIC TRANSCRIPTASES TRANSCRIPTIONS
TRANSCRIPTOMES TRANSPARENCIES TRANSPICUOUSLY TRANSPLACENTAL TRANSPORTANCES
TROPOCOLLAGENS ULTRACOMPETENT ULTRAPRECISION UNAPPRECIATION UNAPPRECIATIVE
UNCONTEMPLATED UNCONTEMPORARY UNEMPHATICALLY UNINCORPORATED UNMETAPHORICAL
UNMETAPHYSICAL UNPEDANTICALLY UNPOETICALNESS UNPRACTICALITY UNPREDICTABLES
UNRECAPTURABLE UNRECIPROCATED UNRESPECTABLES UNSCRIPTURALLY UNSOPHISTICATE
YACHTSMANSHIPS YUPPIFICATIONS