There are 385 fifteen-letter words containing A, H, N, R and S, https://www.bestwordlist.com/c/a/5/15letterwordswithahnrs.htm
ACHONDROPLASIAS ACHONDROPLASTIC ACHROMATISATION ACTINOCHEMISTRY
ACTINOTHERAPIES ADIATHERMANCIES AEROHYDROPLANES AFFRANCHISEMENT
AIRWORTHINESSES ALEXIPHARMAKONS ALUMINOTHERMIES AMORPHOUSNESSES
ANAMORPHOSCOPES ANARCHISTICALLY ANDROGYNOPHORES ANTAPHRODISIACS
ANTHROPOGENESES ANTHROPOGENESIS ANTHROPOLATRIES ANTHROPOLOGISTS
ANTHROPOMETRIES ANTHROPOMETRIST ANTHROPOPATHIES ANTHROPOPATHISM
ANTHROPOPHAGIES ANTHROPOPHAGOUS ANTHROPOPHOBIAS ANTHROPOPHOBICS
ANTHROPOPHUISMS ANTHROPOPSYCHIC ANTHROPOSOPHIES ANTHROPOSOPHIST
ANTIAPHRODISIAC ANTIARRHYTHMICS ANTICHOLESTEROL ANTICHRISTIANLY
ANTIDIARRHOEALS ANTIMONARCHISTS ANTITHROMBOTICS APPRENTICEHOODS
APPRENTICESHIPS ARACHNOIDITISES ARCHAEOBOTANIES ARCHAEOBOTANIST
ARCHEOASTRONOMY ARCHEOBOTANISTS ARCHEOMAGNETISM ARCHGENETHLIACS
ARCHIDIACONATES BACKSCRATCHINGS BALNEOTHERAPIES BENZANTHRACENES
BIPARTISANSHIPS BLAMEWORTHINESS BLETHERANSKATES BRACHISTOCHRONE
BRACHYDIAGONALS BRACHYPINAKOIDS BRAUNSCHWEIGERS BREATHARIANISMS
BREMSSTRAHLUNGS BRONCHODILATORS BRONCHOGRAPHIES BRONCHOSCOPICAL
CATHETERISATION CHAMBERLAINSHIP CHANCELLORSHIPS CHLORITISATIONS
CHLORITIZATIONS CHLORPROMAZINES CHLORTHALIDONES CHOLESTYRAMINES
CHOLINESTERASES CHONDRICHTHYANS CHONDROCRANIUMS CHORIOALLANTOIS
CHROMATICNESSES CHRONOTHERAPIES CLEARHEADEDNESS COCHAIRMANSHIPS
COLDHEARTEDNESS CONSERVATORSHIP CORINTHIANISING COUNTERSHADINGS
CRASHWORTHINESS CROTONALDEHYDES CYBERCHONDRIACS CYPROHEPTADINES
DECHLORINATIONS DECHRISTIANISED DECHRISTIANISES DECHRISTIANIZED
DECHRISTIANIZES DESULPHURATIONS DICHLOROETHANES DIMENHYDRINATES
DISENFRANCHISED DISENFRANCHISES DISENTHRALLMENT DISENTHRALMENTS
DISHARMONIOUSLY DISHEARTENINGLY DISHEARTENMENTS DISINHERITANCES
DISINTHRALLINGS DORSIBRANCHIATE DOWNHEARTEDNESS DRAUGHTSMANSHIP
DRAUGHTSPERSONS EARTHSHATTERING ECHINODERMATOUS ELEUTHEROMANIAS
ENANTIOMORPHIES ENANTIOMORPHISM ENANTIOMORPHOUS ENCEPHALOGRAPHS
ENCHONDROMATOUS ENFRANCHISEMENT ENTEROHEPATITIS ENTHRONISATIONS
ENTHRONIZATIONS EPHEMERALNESSES EPHEMEROPTERANS ETHEREALISATION
ETHERIFICATIONS ETHNOHISTORIANS ETHNOHISTORICAL EUTROPHICATIONS
FAITHWORTHINESS FARTHINGSWORTHS FEATHERBEDDINGS FOOLHARDINESSES
GRAPHICALNESSES GRAPHITISATIONS GRAPHITIZATIONS HALFHEARTEDNESS
HALFPENNYWORTHS HAPHAZARDNESSES HARDHEARTEDNESS HARMONISTICALLY
HAZARDOUSNESSES HEARTBROKENNESS HEARTLESSNESSES HEARTSICKNESSES
HEARTSOMENESSES HEMICRYSTALLINE HEMOGLOBINURIAS HEPARINISATIONS
HEPARINIZATIONS HEREDITARIANISM HEREDITARIANIST HERESTHETICIANS
HERNIORRHAPHIES HIBERNICISATION HIERACOSPHINGES HIERACOSPHINXES
HILARIOUSNESSES HOLOCRYSTALLINE HOMOTRANSPLANTS HONORABLENESSES
HONOURABILITIES HORIZONTALITIES HUMANITARIANISM HUMANITARIANIST
HYDROCORALLINES HYDRODYNAMICIST HYDROGENISATION HYPERADRENALISM
HYPERINFLATIONS HYPERNATRAEMIAS HYPERPOLARISING HYPERSALINITIES
HYPERSALIVATION HYPERVENTILATES HYPERVIGILANCES HYPNOTHERAPISTS
HYPOCHONDRIASES HYPOCHONDRIASIS HYPOCHONDRIASMS HYPOCHONDRIASTS
HYPOCRYSTALLINE HYPOMENORRHOEAS ICHTHYOSAURIANS IMMUNOTHERAPIES
INAPPREHENSIBLE INAPPREHENSIONS INHARMONICITIES INHERITABLENESS
INTERBEHAVIOURS INTERSCHOLASTIC IONOSPHERICALLY KINDHEARTEDNESS
KINESITHERAPIES LABYRINTHITISES LABYRINTHODONTS LIONHEARTEDNESS
LYMPHANGIOGRAMS MACRENCEPHALIAS MACRENCEPHALIES MECHANOMORPHISM
METHOXYFLURANES MISAPPREHENDING MISAPPREHENSION MISAPPREHENSIVE
MONOCHROMATISMS MONOSACCHARIDES MORPHINOMANIACS MULTITHREADINGS
NEARSIGHTEDNESS NEBUCHADNEZZARS NEOARSPHENAMINE NEPHROBLASTOMAS
NEUROPSYCHIATRY NIGHTMARISHNESS NONCHARISMATICS NONHETEROSEXUAL
NONHISTORICALLY NONHYSTERICALLY NONPARTISANSHIP NONPARTIZANSHIP
NONPSYCHIATRIST NORTHEASTERLIES NORTHEASTERNERS NORTHEASTWARDLY
NORTHWESTWARDLY NOTHINGARIANISM NUDIBRANCHIATES OPENHEARTEDNESS
ORCHESTRATIONAL ORGANOCHLORINES ORGANOGRAPHISTS ORGANOPHOSPHATE
ORGANOTHERAPIES ORTHOGONALISING ORTHOGONALITIES OUTDOORSMANSHIP
OVEREMPHASISING OVEREMPHASIZING OVERENTHUSIASMS OVERHASTINESSES
PAMPHLETEERINGS PARTHENOCARPIES PARTHENOCARPOUS PARTHENOGENESES
PARTHENOGENESIS PHALLOCENTRISMS PHANTASMAGORIAL PHANTASMAGORIAS
PHANTASMAGORIES PHARISAICALNESS PHARMACOGNOSIES PHARMACOGNOSIST
PHARMACOGNOSTIC PHARMACOPOEIANS PHARYNGOLOGISTS PHARYNGOSCOPIES
PHENOBARBITONES PHENYLTHIOUREAS PHILANTHROPISTS PHILANTHROPOIDS
PHOSPHOCREATINE PHOSPHOCREATINS PHOSPHORYLATING PHOSPHORYLATION
PHOTOENGRAVINGS PHOTOJOURNALISM PHOTOJOURNALIST PHOTOTRANSISTOR
PHRASEMONGERING PITHECANTHROPUS PREANAESTHETICS PREESTABLISHING
PROBATIONERSHIP PROSENCHYMATOUS PROTHONOTARIATS PROTOHISTORIANS
PSEUDEPIGRAPHON PSILANTHROPISMS PSILANTHROPISTS PSYCHOANALYSERS
PSYCHOANALYZERS PSYCHOHISTORIAN PSYCHOMETRICIAN PYROTECHNICIANS
RADIOTELEPHONES REAUTHORISATION REESTABLISHMENT REHABILITATIONS
REHOSPITALISING REHOSPITALIZING REHUMANIZATIONS REORCHESTRATING
REORCHESTRATION REPROACHFULNESS RETHEORIZATIONS RHINENCEPHALONS
RHINOSCLEROMATA RIGHTABLENESSES ROENTGENOGRAPHS ROUNDHEADEDNESS
SACCHARISATIONS SACCHARIZATIONS SARCENCHYMATOUS SCHILLERISATION
SCHILLERIZATION SCHOLARLINESSES SCHOOLMASTERING SCRATCHBUILDING
SCRIMSHANDERING SEARCHINGNESSES SEAWORTHINESSES SELENOGRAPHICAL
SELENOGRAPHISTS SEMIPORNOGRAPHY SERVOMECHANICAL SERVOMECHANISMS
SHERARDISATIONS SHERARDIZATIONS SHOCKUMENTARIES SLEDGEHAMMERING
SOFTHEARTEDNESS SOUTHEASTERNERS SPHERICALNESSES SPHEROIDISATION
SPHEROIDIZATION SPINTHARISCOPES SPORANGIOPHORES STEGANOGRAPHERS
STEGANOGRAPHIES STEGANOGRAPHIST SULPHINPYRAZONE SULPHURISATIONS
SULPHURIZATIONS SUPERHUMANISING SUPERHUMANITIES SUPERHUMANIZING
SYNARTHRODIALLY SYNCHRONISATION SYNCHRONISTICAL SYNCHRONIZATION
THANATOGRAPHIES THANKWORTHINESS THEATRICALISING THERIANTHROPISM
THERMALISATIONS THERMALIZATIONS THORACOCENTESES THORACOCENTESIS
THROMBOPLASTINS TRAINSPOTTERISH TRANSHISTORICAL TREACHEROUSNESS
TRICHINISATIONS TRICHINIZATIONS TRICHOMONACIDES TRIHALOMETHANES
TRIIODOMETHANES TRIMETHYLAMINES TRIPHENYLAMINES TRISOCTAHEDRONS
TRUEHEARTEDNESS ULTRASONOGRAPHY UNAPPREHENSIBLE UNCHRISTIANISED
UNCHRISTIANISES UNCHRISTIANIZED UNCHRISTIANIZES UNCHRISTIANLIKE
UNDEREMPHASISED UNDEREMPHASISES UNDEREMPHASIZED UNDEREMPHASIZES
UNDERHANDEDNESS UNEARTHLINESSES UNSEAWORTHINESS VAPOURISHNESSES
WARMHEARTEDNESS WEATHERISATIONS WEATHERIZATIONS WEATHERLINESSES
WHIPPERSNAPPERS WITHDRAWNNESSES WRONGHEADEDNESS ZINJANTHROPUSES
ZYGOBRANCHIATES