There are 577 fifteen-letter words containing A, L, P, S and T, https://www.bestwordlist.com/c/a/5/15letterwordswithalpst.htm ACCEPTABILITIES ACCOMPLISHMENTS ACHONDROPLASTIC ADAPTABLENESSES ALLOTETRAPLOIDS ALPHABETISATION ANISOTROPICALLY ANTHROPOLATRIES ANTHROPOLOGISTS ANTICAPITALISMS ANTICAPITALISTS ANTIMONOPOLISTS ANTINEOPLASTICS ANTIPERISTALSES ANTIPERISTALSIS ANTIPERISTALTIC ANTIPHLOGISTICS ANTIREPUBLICANS ANTISHOPLIFTING ANTISPECULATION ANTISPECULATIVE ANTISYPHILITICS APHELIOTROPISMS APOCALYPTICISMS APOLIPOPROTEINS APOLITICALITIES APPEALABILITIES APPLICABILITIES ASTROPHYSICALLY ATMOSPHERICALLY AUTOTETRAPLOIDS BALNEOTHERAPIES BIBLIOTHERAPIES BIPOLARISATIONS BIPOLARIZATIONS BLAXPLOITATIONS CAPITALISATIONS CAPITALIZATIONS CENTRIPETALISMS CENTUPLICATIONS CEPHALOTHORACES CEPHALOTHORAXES CHALCOGRAPHISTS CHANNELOPATHIES CHAPTALISATIONS CHAPTALIZATIONS CLAUSTROPHILIAS CLAUSTROPHOBIAS CLIMATOGRAPHIES COMPARABILITIES COMPASSIONATELY COMPATIBILITIES COMPLEMENTARIES COMPLIANTNESSES COMPLICATEDNESS COMPOSITIONALLY COMPUTABILITIES CONCEPTUALISERS CONCEPTUALISING CONCEPTUALISTIC CONCEPTUALITIES CONCEPTUALIZERS CONDUPLICATIONS CONSULTANTSHIPS CONTRAPUNTALIST COSMOPOLITANISM COUNTEREXAMPLES COUNTERPROPOSAL CRYSTALLOGRAPHY CYCLOPENTOLATES CYTOPATHOLOGIES CYTOPATHOLOGIST CYTOPLASMICALLY DACTYLOGRAPHERS DACTYLOGRAPHIES DECOMPOSABILITY DEPARTMENTALISE DEPARTMENTALISM DEPENDABILITIES DEPHLOGISTICATE DEPHOSPHORYLATE DEPLORABILITIES DEPOLARISATIONS DEPOLARIZATIONS DERMATOGLYPHICS DERMATOPLASTIES DESPICABILITIES DESPIRITUALISED DESPIRITUALISES DESPIRITUALIZED DESPIRITUALIZES DESULPHURATIONS DIAHELIOTROPISM DIASTROPHICALLY DIPLOMATOLOGIES DISAPPLICATIONS DISAPPOINTINGLY DISPASSIONATELY DISPOSABILITIES DISPROPORTIONAL DISPUTABILITIES DISREPUTABILITY DUPLICABILITIES EDRIOPHTHALMOUS ELECTROGRAPHIES ELECTROPLATINGS EMPLOYABILITIES ENCEPHALITOGENS ENCEPHALOTOMIES ENCYCLOPAEDISTS EPISTEMOLOGICAL EPITHELIALISING EPITHELIOMATOUS EPITHELISATIONS EPITHELIZATIONS ESEMPLASTICALLY EUPHEMISTICALLY EVAPORABILITIES EXCEPTIONALISMS EXCEPTIONALISTS EXCEPTIONALNESS EXPANDABILITIES EXPANSIBILITIES EXPENDABILITIES EXPERIENTIALISM EXPERIENTIALIST EXPERIMENTALISE EXPERIMENTALISM EXPERIMENTALIST EXPLORATIONISTS EXPORTABILITIES EXPOSTULATINGLY FLUOROPHOSPHATE GALACTOPOIETICS GALVANOPLASTIES GALVANOTROPISMS GEOSTROPHICALLY HALFPENNYWORTHS HEPATICOLOGISTS HISTOCOMPATIBLE HISTOPATHOLOGIC HOMOPLASTICALLY HOMOTRANSPLANTS HOSPITALISATION HOSPITALIZATION HYPERCATABOLISM HYPERINFLATIONS HYPERMETABOLISM HYPERSALINITIES HYPERSALIVATION HYPERSTIMULATED HYPERSTIMULATES HYPERVENTILATES HYPNOTISABILITY HYPOCRYSTALLINE HYPSOMETRICALLY IMPALPABILITIES IMPARTIALNESSES IMPARTIBILITIES IMPASSABILITIES IMPASSIBILITIES IMPECCABILITIES IMPERISHABILITY IMPERSONALITIES IMPLACABILITIES IMPLEMENTATIONS IMPLICATIVENESS IMPORTABILITIES IMPRACTICALNESS IMPROBABILITIES IMPROVABILITIES IMPROVISATIONAL IMPROVISATORIAL IMPUTABLENESSES INCULPABILITIES INDISPUTABILITY INHOSPITALITIES INOPERABILITIES INSPIRATIONALLY INTERPAROXYSMAL INTERPELLATIONS INTERPERSONALLY INTROSPECTIONAL ISOPERIMETRICAL JURISPRUDENTIAL JUXTAPOSITIONAL LAPIDIFICATIONS LARYNGOSCOPISTS LEGISLATORSHIPS LEUCOCYTOPENIAS LEUKOCYTOPENIAS LEXICOGRAPHISTS LICENTIATESHIPS LIEUTENANTSHIPS LIPOGRAMMATISMS LIPOGRAMMATISTS LYMPHADENITISES LYMPHOSARCOMATA LYOPHILISATIONS LYOPHILIZATIONS MALAPPROPRIATES MALPRESENTATION MESATICEPHALIES MESATICEPHALOUS METABISULPHITES METALLOGRAPHERS METALLOGRAPHIES METALLOGRAPHIST METOCLOPRAMIDES METROPOLITANISE METROPOLITANISM MICROPULSATIONS MISAPPLICATIONS MONOPOLISATIONS MONOPOLIZATIONS MONOPROPELLANTS MULTIPARAMETERS MULTIPLICATIONS MULTIPOLARITIES NEPHROBLASTOMAS NEUROPLASTICITY NONENCAPSULATED NONHOSPITALISED NONHOSPITALIZED NONIMPLICATIONS NONSPECTACULARS NUCLEOPLASMATIC OMOPLATOSCOPIES OPERATIONALISMS OPERATIONALISTS OPHTHALMOLOGIES OPHTHALMOLOGIST OPHTHALMOMETERS OPHTHALMOSCOPES OPHTHALMOSCOPIC OPTIMALISATIONS OPTIMALIZATIONS OSTEOPATHICALLY OVERCAPITALISED OVERCAPITALISES OVERCAPITALIZES OVERCOMPLICATES OVERPOPULATIONS OVERSPECULATING OVERSPECULATION PAINTERLINESSES PALAEBIOLOGISTS PALAEOBIOLOGIST PALAEOBOTANISTS PALAEOECOLOGIST PALAEOGRAPHISTS PALAEOMAGNETISM PALAEOMAGNETIST PALAEONTOLOGIES PALAEONTOLOGIST PALAEOZOOLOGIST PALATABLENESSES PALATALISATIONS PALATALIZATIONS PALEOBIOLOGISTS PALEOECOLOGISTS PALEOMAGNETISMS PALEOMAGNETISTS PALEONTOLOGISTS PALEOZOOLOGISTS PAMPHLETEERINGS PANOPHTHALMITIS PANTHEISTICALLY PANTISOCRATICAL PARABOLISATIONS PARABOLIZATIONS PARALINGUISTICS PARANORMALITIES PARASEXUALITIES PARASITICALNESS PARASITOLOGICAL PARASITOLOGISTS PARLIAMENTARISM PARTICULARISERS PARTICULARISING PARTICULARISTIC PARTICULARITIES PARTICULARIZERS PATENTABILITIES PATERFAMILIASES PATHOPHYSIOLOGY PATRIALISATIONS PATRIALIZATIONS PATRIARCHALISMS PATRIFOCALITIES PENETRABILITIES PENINSULARITIES PENTADACTYLISMS PERDURABILITIES PERFECTIBILIANS PERINATOLOGISTS PERIPHERALITIES PERISHABILITIES PERISSODACTYLES PERISSODACTYLIC PERISTALTICALLY PERMUTABILITIES PERSONALISATION PERSONALIZATION PESSIMISTICALLY PHALLOCENTRISMS PHANTASMAGORIAL PHANTASMALITIES PHARMACEUTICALS PHARMACOLOGISTS PHARMACOPOLISTS PHARYNGOLOGISTS PHENETHYLAMINES PHENOMENALISTIC PHENOMENALITIES PHENYLBUTAZONES PHENYLTHIOUREAS PHILANTHROPISTS PHILANTHROPOIDS PHILOSOPHASTERS PHLOGISTICATING PHOSPHORYLATING PHOSPHORYLATION PHOSPHORYLATIVE PHOTODUPLICATES PHOTOELASTICITY PHOTOJOURNALISM PHOTOJOURNALIST PHOTOTELEGRAPHS PHTHALOCYANINES PHYLLOSILICATES PHYSIOPATHOLOGY PICTORIALNESSES PINEALECTOMISED PINEALECTOMISES PINEALECTOMIZES PISCICULTURALLY PLAGIOSTOMATOUS PLAINCLOTHESMAN PLAINCLOTHESMEN PLAINTIVENESSES PLANTAGINACEOUS PLASMOLYTICALLY PLASTICISATIONS PLASTICIZATIONS PLATINOCYANIDES PLATITUDINISERS PLATITUDINISING PLATITUDINIZERS PLATITUDINOUSLY PLETHYSMOGRAPHS PLETHYSMOGRAPHY PLURALISTICALLY PNEUMATOLOGISTS POLITICISATIONS POLITICIZATIONS POLYARTHRITIDES POLYARTHRITISES POLYCHROMATISMS POLYCRYSTALLINE POLYMERISATIONS POLYMERIZATIONS POLYSYNTHETICAL POLYUNSATURATED POLYUNSATURATES PONDERABILITIES PONTIFICALITIES POPULARISATIONS POPULARIZATIONS POSTADOLESCENCE POSTADOLESCENTS POSTAPOCALYPSES POSTAPOCALYPTIC POSTCONSONANTAL POSTDEVALUATION POSTINOCULATION POSTMILLENARIAN POSTMILLENNIALS POSTOPERATIVELY POSTPOLLINATION POSTSTIMULATION POSTSTIMULATORY POSTULATIONALLY PRACTICABLENESS PRACTICALNESSES PRAGMATICALNESS PREDICABILITIES PREDICTABLENESS PREESTABLISHING PREFERABILITIES PREFERENTIALISM PREFERENTIALIST PREHISTORICALLY PREINSTALLATION PREPOSITIONALLY PREPRESIDENTIAL PREPUBLICATIONS PRESENTABLENESS PRESENTIALITIES PRESYNAPTICALLY PREVALENTNESSES PRIMORDIALITIES PRINTABLENESSES PROBABILIORISTS PROCELEUSMATICS PROCESSIONALIST PROFESSIONALIST PROFITABILITIES PROLETARIANISED PROLETARIANISES PROLETARIANISMS PROLETARIANIZES PROLETARIANNESS PROMOTABILITIES PROPAGABILITIES PROPOSITIONALLY PROPYLITISATION PROSELYTISATION PROSELYTIZATION PROVINCIALITIES PRUDENTIALITIES PSEUDOCOELOMATE PSEUDOMUTUALITY PSILANTHROPISMS PSILANTHROPISTS PSYCHIATRICALLY PSYCHOGENETICAL PSYCHOPATHOLOGY PSYCHOSEXUALITY PSYCHROMETRICAL PTERYLOGRAPHIES PUNISHABILITIES PURITANICALNESS PUSILLANIMITIES PYRAMIDOLOGISTS QUADRUPLICITIES RADICULOPATHIES RADIOTELEGRAPHS RADIOTELEPHONES RECAPITULATIONS RECIPROCALITIES RECONCEPTUALISE RECTIPETALITIES REHOSPITALISING REHOSPITALIZING REIMPLANTATIONS REPAIRABILITIES REPEATABILITIES REPLICABILITIES REPOLARISATIONS REPOLARIZATIONS RESPECTABILISED RESPECTABILISES RESPECTABILIZED RESPECTABILIZES RESPECTABLENESS RESPIRABILITIES RESPIRITUALISED RESPIRITUALISES RESPIRITUALIZED RESPIRITUALIZES SALPINGECTOMIES SAPROPHYTICALLY SCINTILLASCOPES SCLEROTHERAPIES SELENOGRAPHISTS SEPTENTRIONALLY SIMPLICIDENTATE SIMPLIFICATIONS SKEPTICALNESSES SLUMPFLATIONARY SOLIPSISTICALLY SOPHISTICATEDLY SPATIALISATIONS SPATIALIZATIONS SPECIALISATIONS SPECIALIZATIONS SPECTROSCOPICAL SPECULATIVENESS SPELEOTHERAPIES SPERMATOBLASTIC SPHAEROCRYSTALS SPIRITUALNESSES SPIRONOLACTONES SPREADABILITIES STADHOLDERSHIPS STADTHOLDERSHIP STAPHYLOPLASTIC STAPHYLORRHAPHY STEEPLECHASINGS STEGOCEPHALIANS STEREOGRAPHICAL STEREOTYPICALLY STIGMATOPHILIAS STIGMATOPHILIST STOMATOPLASTIES STRATIGRAPHICAL STRATOSPHERICAL STREPHOSYMBOLIA STREPTOBACILLUS SUBPROLETARIATS SUBSPECIALITIES SULPHACETAMIDES SULPHATHIAZOLES SULPHONMETHANES SULPHURISATIONS SULPHURIZATIONS SUPERABUNDANTLY SUPERADDITIONAL SUPERELEVATIONS SUPEREXALTATION SUPERLATIVENESS SUPERNATIONALLY SUPERNATURALISE SUPERNATURALISM SUPERNATURALIST SUPERNATURALIZE SUPEROVULATIONS SUPERPLASTICITY SUPERSPECIALIST SUPERSPECTACLES SUPERSTIMULATED SUPERSTIMULATES SUPERSTRUCTURAL SUPPLEMENTARIES SUPPLEMENTARILY SUPPLEMENTATION SUPPORTABLENESS SUPPOSITIONALLY SUPRANATIONALLY SUSPERCOLLATING SYCOPHANTICALLY SYMPATHETICALLY SYMPTOMATICALLY SYMPTOMATOLOGIC SYMPTOMOLOGICAL TEENSPLOITATION TELAUTOGRAPHIES TELEPHOTOGRAPHS TEMPERABILITIES TEMPTABLENESSES THALASSOGRAPHER THALASSOGRAPHIC THALASSOTHERAPY THEOSOPHISTICAL THORACOPLASTIES THROMBOPLASTINS TRANSCRIPTIONAL TRANSCRIPTIVELY TRANSPIRATIONAL TRANSPLANTATION TRANSPOSABILITY TRANSPOSITIONAL TRIPERSONALISMS TRIPERSONALISTS TRIPHENYLAMINES TROPICALISATION ULTRACREPIDATES ULTRAMICROSCOPE ULTRAMICROSCOPY ULTRAPRECISIONS ULTRASONOGRAPHY UNAPOSTOLICALLY UNCOMPLAISANTLY UNDERCAPITALISE UNPRACTICALNESS UNPRINTABLENESS UNPUNCTUALITIES UNSPECTACULARLY UNSPIRITUALISED UNSPIRITUALISES UNSPIRITUALIZED UNSPIRITUALIZES UNSPORTSMANLIKE UPGRADABILITIES VAPOURABILITIES XENOTRANSPLANTS