There are 833 fourteen-letter words containing A, P and 2S, https://www.bestwordlist.com/c/a/4/14letterwordswithapss.htm
ABSORPTIVENESS ABSORPTIVITIES ACCEPTABLENESS ACHROMATOPSIAS ACUPUNCTURISTS
ADAPTATIONISTS ADAPTIVENESSES AFFENPINSCHERS ALLOIOSTROPHOS AMBASSADORSHIP
AMPHIARTHROSES AMPHIARTHROSIS AMPHIBIOUSNESS AMPHIPROSTYLES ANALPHABETISMS
ANAPHRODISIACS ANISOMETROPIAS ANTICENSORSHIP ANTIDEPRESSANT ANTIDEPRESSION
ANTIPARASITICS ANTIPERISTASES ANTIPERISTASIS ANTIPSYCHOTICS ANTISEPARATIST
ANTISEPTICISED ANTISEPTICISES ANTISEPTICISMS ANTISEPTICIZES ANTISPASMODICS
APOCHROMATISMS APOCRYPHALNESS APOGEOTROPISMS APOSTOLICITIES APOSTROPHISING
APOTHEGMATISES APOTHEGMATISTS APPARENTNESSES APPENDICITISES APPLICABLENESS
APPOSITENESSES ARCHBISHOPRICS ARCHPRIESTSHIP ARTHROPLASTIES ASPIRINGNESSES
ASSISTANTSHIPS ASSOCIATESHIPS ASTHENOSPHERES ASTHENOSPHERIC ASTRAPOPHOBIAS
ASTROCOMPASSES ASTROPHYSICIST AUSPICIOUSNESS BALLISTOSPORES BANDSPREADINGS
BARRISTERSHIPS BASIDIOSPOROUS BIBLIOPHAGISTS BIPARTISANISMS BIPARTISANSHIP
BISPHOSPHONATE BLEPHAROPLASTS BLEPHAROSPASMS BRACHYPTERISMS BRINKSMANSHIPS
BRONCHOSPASTIC CAESAROPAPISMS CALLIGRAPHISTS CAMPANOLOGISTS CANDIDATESHIPS
CAPELLMEISTERS CAPRICIOUSNESS CAPTIOUSNESSES CATASTROPHISMS CATASTROPHISTS
CEPHALISATIONS CEPHALOSPORINS CERULOPLASMINS CHIEFTAINSHIPS CHIROGRAPHISTS
CHLAMYDOSPORES CHRISTOPHANIES CHURCHMANSHIPS CLAUSTROPHOBES COADJUTORSHIPS
COCHAIRPERSONS COCONSPIRATORS COLLEAGUESHIPS COMMANDERSHIPS COMMISSARYSHIP
COMPANIONSHIPS COMPARABLENESS COMPARATIVISTS COMPASSIONABLE COMPASSIONATED
COMPASSIONATES COMPASSIONLESS COMPATIBLENESS COMPATRIOTISMS COMPLIABLENESS
CONCEPTUALISES CONCEPTUALISMS CONCEPTUALISTS CONSPURCATIONS CONSTABLESHIPS
CONSTUPRATIONS CONSULTANTSHIP CONTAINERSHIPS CONTEMPLATISTS CONTRAPUNTISTS
COPARTNERSHIPS CORPORATIVISMS COSMOGRAPHISTS COTRANSPORTERS CRAFTSMANSHIPS
CRANIOSCOPISTS CRYPTAESTHESIA CRYPTESTHESIAS CULPABLENESSES CUSTODIANSHIPS
DACTYLOSCOPIES DECAPSULATIONS DEPENDABLENESS DEPERSONALISED DEPERSONALISES
DEPERSONALIZES DEPLORABLENESS DEPRAVEDNESSES DESPICABLENESS DESPIRITUALISE
DESPOTICALNESS DESPOTOCRACIES DIAGEOTROPISMS DIAPHANOUSNESS DISAPPEARANCES
DISCAPACITATES DISIMPASSIONED DISPARAGEMENTS DISPAUPERISING DISPENSABILITY
DISPENSATIONAL DISPENSATIVELY DISPENSATORIES DISPENSATORILY DISPLANTATIONS
DISPLEASANTING DISPLEASEDNESS DISPOSABLENESS DISPURVEYANCES DISPUTABLENESS
DISPUTATIOUSLY DISREPUTATIONS DISRESPECTABLE DISSIPATEDNESS DODECAPHONISMS
DODECAPHONISTS DOUBLESPEAKERS DRAFTSMANSHIPS DRAUGHTSPERSON EAVESDROPPINGS
ELLIPTICALNESS EMPHATICALNESS EMPYREUMATISES ENCAPSULATIONS ENCEPHALITISES
ENCOMPASSMENTS ENDOPARASITISM ENDOPEPTIDASES ENHYPOSTATISED ENHYPOSTATISES
ENHYPOSTATIZES EPIDOTISATIONS EPIGRAMMATISES EPIGRAMMATISMS EPIGRAMMATISTS
EPITHELIALISES EPITOMISATIONS ERGASTOPLASMIC ESOPHAGOSCOPES EUPHAUSIACEANS
EXOPHTHALMOSES EXOPHTHALMUSES EXPANSIONISTIC EXPOSTULATIONS EXTRAPOSITIONS
FERROPRUSSIATE FLIPPANTNESSES GALACTOPOIESES GALACTOPOIESIS GALVANOSCOPIES
GASTROPLASTIES GASTROSCOPISTS GELANDESPRUNGS GENTLEMANSHIPS GLADIATORSHIPS
GLOSSOGRAPHERS GLOSSOGRAPHIES GRANTSMANSHIPS GRASPINGNESSES HAEMATOPOIESES
HAEMATOPOIESIS HAGIOGRAPHISTS HAIRSPLITTINGS HAMPEREDNESSES HAPLOSTEMONOUS
HARPSICHORDIST HARUSPICATIONS HEADMASTERSHIP HETEROPLASTIES HIPPOPOTAMUSES
HISPANIOLISING HISTOPLASMOSES HISTOPLASMOSIS HOMOEOPATHISTS HOSPITABLENESS
HYDROSULPHATES HYMENOPLASTIES HYPERACUTENESS HYPERAESTHESIA HYPERAESTHESIC
HYPERALERTNESS HYPERAWARENESS HYPERESTHESIAS HYPERKERATOSES HYPERKERATOSIS
HYPERPARASITES HYPERPOLARISES HYPERPROSEXIAS HYPERURBANISMS HYPHENISATIONS
HYPNOTISATIONS HYPOPHOSPHATES ICHTHYOPSIDANS IMPASSABLENESS IMPASSIBLENESS
IMPERATIVENESS IMPERATORSHIPS IMPERIALNESSES IMPERSONALISED IMPERSONALISES
IMPERSONALIZES IMPERSONATIONS IMPLACABLENESS IMPOSTUMATIONS IMPRESSIONABLE
IMPRESSIONALLY IMPROBABLENESS IMPROVABLENESS IMPROVISATIONS IMPROVISATORES
INAPPOSITENESS INAUSPICIOUSLY INCAPSULATIONS INCULPABLENESS INDISPENSABLES
INEXPIABLENESS INFRAPOSITIONS INOPERABLENESS INSPIRATIONISM INSPIRATIONIST
INTERPILASTERS ISOPIESTICALLY JUSTICIARSHIPS JUXTAPOSITIONS KAPELLMEISTERS
KERATOPLASTIES KINESIPATHISTS LANDOWNERSHIPS LAPAROSCOPISTS LARYNGOSCOPIES
LARYNGOSCOPIST LEGISLATORSHIP LETTERSPACINGS LIBRARIANSHIPS LYCANTHROPISTS
LYMPHANGITISES LYMPHOSARCOMAS MAGISTRATESHIP MAGNETOSPHERES MALABSORPTIONS
MALAPERTNESSES MARSIPOBRANCHS MASSOTHERAPIES MASSOTHERAPIST MASTIGOPHORANS
MASTIGOPHOROUS MESENCEPHALONS MESOCEPHALISMS METAPHOSPHATES METAPHYSICIANS
METAPHYSICISED METAPHYSICISES METAPHYSICISTS METAPHYSICIZES MICROPARASITES
MISANTHROPISTS MISANTHROPOSES MISAPPRECIATES MISASSUMPTIONS MISEMPHASISING
MISEMPHASIZING MISPERSUASIONS MODERATORSHIPS MONOPHOSPHATES MORPHOSYNTAXES
MOUSETRAPPINGS MULTIHOSPITALS MULTIPARTYISMS NANOCOMPOSITES NEOCAPITALISMS
NEOCAPITALISTS NEOPLASTICISMS NEOPLASTICISTS NONCAPITALISTS NONPERISHABLES
NONSPECIALISTS OESOPHAGITISES OESOPHAGOSCOPE OESOPHAGOSCOPY OMBUDSMANSHIPS
OMPHALOSKEPSES OMPHALOSKEPSIS ONOMATOPOIESES ONOMATOPOIESIS ONYCHOPHAGISTS
OPENHANDEDNESS OPHTHALMITISES OPISTHOBRANCHS OPISTHOGLOSSAL OPPOSABILITIES
ORTHOGRAPHISTS OVEREMPHASISED OVEREMPHASISES OVEREMPHASIZES OVEREXPANSIONS
OVERPERSUASION OVERSPECIALISE OVERSPECULATES PAEDOMORPHISMS PAEDOMORPHOSES
PAEDOMORPHOSIS PAINLESSNESSES PALATIALNESSES PALEOBOTANISTS PALINGENESISTS
PALLETISATIONS PALPABLENESSES PAMPEREDNESSES PANAESTHETISMS PANARTHRITISES
PANCHROMATISMS PANCREATITISES PANGRAMMATISTS PANSEXUALITIES PANSPERMATISMS
PANSPERMATISTS PANTHEOLOGISTS PANTISOCRACIES PANTISOCRATIST PAPAPRELATISTS
PAPILLOMATOSES PAPILLOMATOSIS PARAMAGNETISMS PARAMENSTRUUMS PARANTHROPUSES
PARASITISATION PARASITOLOGIES PARASITOLOGIST PARDONABLENESS PARENTHESISING
PARSIMONIOUSLY PARTHENOSPORES PARTICULARISES PARTICULARISMS PARTICULARISTS
PARTICULARNESS PASSABLENESSES PASSEMENTERIES PASSIBLENESSES PASSIONATENESS
PASSIONFLOWERS PASTEURISATION PASTORALNESSES PATHLESSNESSES PATRESFAMILIAS
PATRONISATIONS PATULOUSNESSES PAUPERISATIONS PEACEFULNESSES PECTINESTERASE
PEDESTRIANISED PEDESTRIANISES PEDESTRIANISMS PEDESTRIANIZES PELLETISATIONS
PENDRAGONSHIPS PENETRABLENESS PENICILLINASES PEPTONISATIONS PERICARDITISES
PERIMENOPAUSES PERIODICALISTS PERIODISATIONS PERISHABLENESS PERISSODACTYLE
PERISSODACTYLS PERLUSTRATIONS PERMUTABLENESS PERSCRUTATIONS PERSEVERATIONS
PERSONABLENESS PERSPICACITIES PERSUASIBILITY PERSUASIVENESS PHALANSTERIANS
PHALANSTERISMS PHALANSTERISTS PHARMACEUTISTS PHARYNGOSCOPES PHELLOPLASTICS
PHENOMENALISES PHENOMENALISMS PHENOMENALISTS PHILADELPHUSES PHILOSOPHASTER
PHLEGMATICNESS PHLOGISTICATES PHONETISATIONS PHONOGRAPHISTS PHOSPHOKINASES
PHOSPHOLIPASES PHOSPHORYLASES PHOSPHORYLATES PHOTOCATALYSES PHOTOCATALYSIS
PHOTOGRAPHISTS PHOTOSYNTHATES PHRASEOLOGISTS PHYSHARMONICAS PHYSICALNESSES
PHYSICIANSHIPS PHYSIOGRAPHERS PHYSIOGRAPHIES PICAYUNISHNESS PICORNAVIRUSES
PICTURISATIONS PIDGINISATIONS PITIABLENESSES PLACABLENESSES PLAGIOTROPISMS
PLANETOLOGISTS PLANLESSNESSES PLASMAPHERESES PLASMAPHERESIS PLASTERINESSES
PLASTICISATION PLASTOQUINONES PLATINISATIONS PLATITUDINISES PLAUSIBILITIES
PLEASANTNESSES PLEASINGNESSES PLESIOSAURIANS PLETHYSMOGRAMS PLEURAPOPHYSES
PLEURAPOPHYSIS PLOUGHMANSHIPS PLURALISATIONS PNEUMOGASTRICS POCOCURANTISMS
POCOCURANTISTS PODSOLISATIONS PODSOLIZATIONS PODZOLISATIONS POETICALNESSES
POLYDACTYLISMS POLYDAEMONISMS POLYHISTORIANS POLYNOMIALISMS POLYOMAVIRUSES
POLYSACCHAROSE POLYSYLLABISMS POSSESSIONATES POSTADOLESCENT POSTAPOCALYPSE
POSTCAPITALIST POSTDOCTORATES POSTERISATIONS POSTERIZATIONS POSTINDUSTRIAL
POSTLAPSARIANS POSTMASTECTOMY POSTMASTERSHIP POSTMENOPAUSAL POSTPOSITIONAL
POSTSURGICALLY POSTTREATMENTS POSTULANTSHIPS PRANKISHNESSES PRAYERLESSNESS
PREADOLESCENTS PRECARIOUSNESS PRECESSIONALLY PRECONISATIONS PREDACEOUSNESS
PREDACIOUSNESS PREDESTINATORS PREDICABLENESS PREESTABLISHED PREESTABLISHES
PREFERABLENESS PREPAREDNESSES PRESERVATORIES PRESSURISATION PRESSURIZATION
PRIMATOLOGISTS PRIMORDIALISMS PRINCIPALSHIPS PRIVATISATIONS PROCESSABILITY
PROCESSIONALLY PROCRASTINATES PROFESSIONALLY PROFESSORIALLY PROFESSORIATES
PROFITABLENESS PROGNOSTICATES PROGRESSIONARY PRONOMINALISES PRONUCLEARISTS
PROPAGABLENESS PROPAGANDISERS PROSOPAGNOSIAS PROSTAGLANDINS PROSTHODONTIAS
PROTOSPATAIRES PROTRACTEDNESS PROVABLENESSES PROVERBIALISES PROVERBIALISMS
PROVERBIALISTS PROVINCIALISES PROVINCIALISMS PROVINCIALISTS PROVISIONARIES
PRUDENTIALISMS PRUDENTIALISTS PSEPHOANALYSES PSEPHOANALYSIS PSEUDAESTHESIA
PSEUDARTHROSES PSEUDARTHROSIS PSEUDEPIGRAPHS PSEUDOCLASSICS PSEUDOGRAPHIES
PSILANTHROPIES PSILANTHROPISM PSILANTHROPIST PSYCHASTHENIAS PSYCHASTHENICS
PSYCHOACOUSTIC PSYCHOANALYSED PSYCHOANALYSER PSYCHOANALYSES PSYCHOANALYSIS
PSYCHOANALYSTS PSYCHOANALYZES PSYCHOBABBLERS PSYCHODYNAMICS PSYCHOGRAPHICS
PSYCHOGRAPHIES PSYCHOPATHISTS PSYCHOPHYSICAL PSYCHOSEXUALLY PSYCHOSOCIALLY
PSYCHOSOMATICS PSYCHOSURGICAL PUGNACIOUSNESS PULVERISATIONS PYROPHOSPHATES
QUASIPARTICLES RAMPAGEOUSNESS REGISTRARSHIPS REHOSPITALISED REHOSPITALISES
REHOSPITALIZES REPRESENTAMENS REPUBLICANISES REPUBLICANISMS REPUTATIONLESS
RESPECTABILISE RESPIRITUALISE SALPIGLOSSISES SCAMPISHNESSES SCAPEGALLOWSES
SCAPHOCEPHALUS SCAPULIMANCIES SCAPULOMANCIES SCHIZOPHRENIAS SCINTIGRAPHIES
SCINTILLASCOPE SCISSIPARITIES SCRIPTURALISMS SCRIPTURALISTS SECRETARYSHIPS
SEISMOGRAPHERS SEISMOGRAPHIES SELENOGRAPHERS SELENOGRAPHIES SELENOGRAPHIST
SEMIPALMATIONS SEMIPARASITISM SEMIPORCELAINS SENESCHALSHIPS SEPARABILITIES
SEPARATENESSES SEPARATIONISMS SEPARATIONISTS SEPARATIVENESS SEPTUAGENARIES
SESQUIPEDALIAN SESQUIPEDALITY SEXPLOITATIONS SHADOWGRAPHIES SHAPESHIFTINGS
SHARECROPPINGS SHARPSHOOTINGS SHEEPSHEARINGS SIMPLIFICATORS SIMPLISTICALLY
SINANTHROPUSES SINDONOPHANIES SNAPPISHNESSES SNIPPERSNAPPER SOMATOTROPHINS
SOMATOTROPINES SOPHISTICATING SOPHISTICATION SOPHISTICATORS SPACIOUSNESSES
SPARKLEBERRIES SPARROWGRASSES SPATHIPHYLLUMS SPATIALISATION SPECIALISATION
SPECIFICATIONS SPECTATORSHIPS SPECTRALNESSES SPELAEOLOGISTS SPERMATOBLASTS
SPERMATOGENIES SPERMATOGENOUS SPERMATOPHORES SPERMATOPHYTES SPERMATORRHEAS
SPERMATOTHECAS SPHAEROCRYSTAL SPHAGNOLOGISTS SPHERICALITIES SPIFFLICATIONS
SPINTHARISCOPE SPIRITUALISERS SPIRITUALISING SPIRITUALISTIC SPIRITUALITIES
SPIRITUALIZERS SPIROCHAETOSES SPIROCHAETOSIS SPLANCHNOCELES SPLENOMEGALIES
SPOKESMANSHIPS SPONGIOBLASTIC SPORADICALNESS SPORANGIOSPORE SPORTABILITIES
SPORTFISHERMAN SPORTSMANLIEST SPORTSMANSHIPS STADHOLDERSHIP STAPEDECTOMIES
STAPHYLOCOCCUS STAPHYLOPLASTY STATESMANSHIPS STEEPLECHASERS STEEPLECHASING
STEGOCEPHALOUS STENOGRAPHISTS STEPPARENTINGS STEREOGRAPHIES STEREOSCOPICAL
STRATIGRAPHERS STRATIGRAPHIES STRATIGRAPHIST STREPTOKINASES STROBOSCOPICAL
STROPHANTHUSES SUBAPPEARANCES SUBATMOSPHERIC SUBDEACONSHIPS SUBDEPARTMENTS
SUBPOPULATIONS SUBSPECIALISED SUBSPECIALISES SUBSPECIALISTS SUBSPECIALIZED
SUBSPECIALIZES SUBSPECIALTIES SUBSPONTANEOUS SUFFRAGANSHIPS SULPHADIAZINES
SULPHONYLUREAS SULPHURISATION SUPERABILITIES SUPERABSORBENT SUPERACHIEVERS
SUPERADDITIONS SUPERAMBITIOUS SUPERCALENDERS SUPERCARGOSHIP SUPERCELESTIAL
SUPERCILIARIES SUPERCRIMINALS SUPERDAINTIEST SUPERDELEGATES SUPERDIPLOMATS
SUPERDOMINANTS SUPEREROGATORS SUPERESSENTIAL SUPERFETATIONS SUPERFICIALISE
SUPERGRAVITIES SUPERHUMANISED SUPERHUMANISES SUPERHUMANIZES SUPERHUMANNESS
SUPERIMPOSABLE SUPERINSULATED SUPERLOYALISTS SUPERMASCULINE SUPERMEMBRANES
SUPERMILITANTS SUPERNATATIONS SUPERORDINATES SUPERORGANISMS SUPERPARTICLES
SUPERPHOSPHATE SUPERQUALITIES SUPERREGIONALS SUPERSATURATED SUPERSATURATES
SUPERSEXUALITY SUPERSONICALLY SUPERSPECTACLE SUPERSTIMULATE SUPPLANTATIONS
SUPPOSITIONARY SUPRALAPSARIAN SUPRAMOLECULES SUPRASEGMENTAL SURPASSINGNESS
SURROGATESHIPS SUSPERCOLLATED SUSPERCOLLATES SWORDSMANSHIPS SYCOPHANTISHLY
SYCOPHANTISING SYCOPHANTLIEST SYMPATHOLYTICS SYMPTOMATISING SYNAPOMORPHIES
SYNAPOSEMATISM SYPHILISATIONS SYPHILIZATIONS SYPHILOPHOBIAS TABLESPOONFULS
TABLESPOONSFUL TACHISTOSCOPES TACHISTOSCOPIC TACHYGRAPHISTS TEMPORALNESSES
TEMPORISATIONS THALASSOGRAPHY THEANTHROPISMS THEANTHROPISTS THERMOPLASTICS
THYSANOPTEROUS TOPOISOMERASES TRACHEOSCOPIES TRACHYPTERUSES TRAINSPOTTINGS
TRANSCRIPTASES TRANSCRIPTIONS TRANSCRIPTOMES TRANSPARENCIES TRANSPARENTISE
TRANSPICUOUSLY TRANSPIRATIONS TRANSPLANTINGS TRANSPORTANCES TRANSPOSITIONS
TRANSSHIPMENTS TRANSSHIPPINGS TREASURERSHIPS TREPONEMATOSES TREPONEMATOSIS
TRIPERSONALISM TRIPERSONALIST UNASPIRINGNESS UNDEREMPHASISE UNDERSTRAPPERS
UNPASSABLENESS UNPERSUASIVELY UNPLEASANTNESS UNPLEASANTRIES UNPOETICALNESS
UNPREPAREDNESS UNPROFESSIONAL UNRESPECTABLES UNSOPHISTICATE UNSPIRITUALISE
UNSYMPATHISING UPROARIOUSNESS UPSTANDINGNESS URANOGRAPHISTS VAPORISHNESSES
VAPOROUSNESSES VIVIPAROUSNESS WAFFLESTOMPERS WAPPENSHAWINGS WATERPROOFNESS
WEATHERPERSONS XIPHIPLASTRALS YACHTSMANSHIPS