There are 802 eleven-letter words containing 2A, P and T, https://www.bestwordlist.com/c/a/4/11letterwordswithaapt.htm ABSORPTANCE ACATALEPTIC ACCEPTANCES ACCEPTATION ACCOMPANIST ACCOMPTABLE ACCOMPTANTS ACROPETALLY ADAPTATIONS ADAPTEDNESS ADAPTOGENIC ADIAPHORIST ADOPTIANISM ADOPTIANIST ALLELOPATHY ALLOPATHIES ALLOPATHIST ALLOPATRIES ALLOPLASTIC ALPHABETING ALPHABETISE ALPHABETIZE ALPHAMETICS ALPHASORTED ALPHATESTED ALPROSTADIL ALTARPIECES AMATEURSHIP AMPHETAMINE AMPHIASTERS AMPHIPATHIC AMPHISTYLAR AMPHITHECIA AMPHITRICHA AMPLIATIONS AMPUTATIONS AMYLOPLASTS ANABAPTISED ANABAPTISES ANABAPTISMS ANABAPTISTS ANABAPTIZED ANABAPTIZES ANALPHABETE ANALPHABETS ANAPLASTIES ANAPLEROTIC ANASTROPHES ANGIOPLASTY ANTECHAPELS ANTENUPTIAL ANTHROPICAL ANTICIPANTS ANTICIPATED ANTICIPATES ANTICIPATOR ANTIPARTIES ANTIPATHIES ANTIPATHIST ANTIPHONALS ANTIPHONARY ANTIPHRASES ANTIPHRASIS ANTIPODEANS ANTIPOPULAR ANTISPASTIC ANTITYPICAL AORTOGRAPHY APARTHOTELS APARTMENTAL APARTNESSES APATHETICAL APATOSAURUS APHETICALLY APICULTURAL APLANATISMS APOCALYPTIC APOCHROMATS APOCOPATING APOCOPATION APODICTICAL APOLAUSTICS APOMICTICAL APOSTATICAL APOSTATISED APOSTATISES APOSTATIZED APOSTATIZES APOSTOLATES APOSTOLICAL APOTROPAISM APPARATCHIK APPARATUSES APPARELMENT APPARITIONS APPARTEMENT APPEACHMENT APPEASEMENT APPELLATION APPELLATIVE APPERTAINED APPLICATION APPLICATIVE APPLICATORS APPLICATORY APPRECIATED APPRECIATES APPRECIATOR APPROBATING APPROBATION APPROBATIVE APPROBATORY APPROPRIATE APPROXIMATE APPURTENANT APRICATIONS APTITUDINAL ARCTOPHILIA ARPEGGIATED ARPEGGIATES ARTHROPATHY ARTHROPODAL ARTHROPODAN ARTISANSHIP ASEPTICALLY ASPERGATION ASPHALTITES ASPHYXIANTS ASPHYXIATED ASPHYXIATES ASPHYXIATOR ASPIDISTRAS ASPIRATIONS ASPORTATION ASTHENOPIAS ASTRAPHOBIA ASTRAPHOBIC ASTROPHOBIA ATHWARTSHIP ATTEMPTABLE ATYPICALITY AUDIOTAPING AUSPICATING AUTOCEPHALY AUTOGRAPHED AUTOGRAPHIC AUTOPHAGIAS AUTOPHAGIES AUTOPHAGOUS AUTOPHANOUS AUTOPHOBIAS AUTOPLASTIC AUTOSAMPLER BACKSTAMPED BAPTISMALLY BASIPETALLY BATHOPHOBIA BATHYSCAPES BATHYSCAPHE BATHYSCAPHS BATSMANSHIP BATTLEPLANE BATTLESPACE BIPARTISANS BLACKSTRAPS BLASTOPORAL BRATPACKERS BREASTPLATE CAMPANULATE CAMPESTRIAN CAMPHORATED CAMPHORATES CANTALOUPES CAPACITANCE CAPACITATED CAPACITATES CAPILLARITY CAPITALISED CAPITALISES CAPITALISMS CAPITALISTS CAPITALIZED CAPITALIZES CAPITATIONS CAPITULANTS CAPITULARLY CAPITULATED CAPITULATES CAPITULATOR CAPODASTROS CAPROLACTAM CAPSULATION CAPTAINCIES CAPTAINRIES CAPTAINSHIP CAPTIVANCES CAPTIVATING CAPTIVATION CAPTIVATORS CAPTIVAUNCE CARDIOPATHY CARNAPTIOUS CARPELLATES CARPENTARIA CARTOGRAPHY CATALEPSIES CATALEPTICS CATAPHONICS CATAPHRACTS CATAPLASIAS CATAPLASTIC CATAPLECTIC CATAPLEXIES CATAPULTIER CATAPULTING CATASTROPHE CATCHPHRASE CATERPILLAR CATOPTRICAL CERATOPSIAN CHAINPLATES CHAMAEPHYTE CHAPTALISED CHAPTALISES CHAPTALIZED CHAPTALIZES CHEAPSKATES CLEPTOMANIA COAPTATIONS COCAPTAINED COMPAGINATE COMPARATIST COMPARATIVE COMPARATORS COMPEARANTS COMPLAINANT COMPLAISANT COPLANARITY DEASPIRATED DEASPIRATES DECAPITATED DECAPITATES DECAPITATOR DECAPSULATE DEPAUPERATE DEPRAVATION DERMAPTERAN DIAPHANEITY DILAPIDATED DILAPIDATES DILAPIDATOR DISPARATELY DISPLEASANT DRAPABILITY EMANCIPATED EMANCIPATES EMANCIPATOR EMPYREUMATA ENCAPSULATE ENTOPLASTRA EPANALEPTIC EPIGASTRIAL EPIPLASTRAL EPIRRHEMATA EPITAXIALLY EPITHALAMIA EPITHALAMIC EQUIPARATED EQUIPARATES EUTRAPELIAS EVAPORATING EVAPORATION EVAPORATIVE EVAPORATORS EXAPTATIONS EXASPERATED EXASPERATER EXASPERATES EXASPERATOR EXOPARASITE EXPATIATING EXPATIATION EXPATIATIVE EXPATIATORS EXPATIATORY EXPATRIATED EXPATRIATES EXPLANATION EXPLANATIVE EXPLANATORY EXTRAPOLATE FACEPLANTED FLOATPLANES GABAPENTINS GASTROPODAN GRANDPARENT GREASEPAINT HANDSTAMPED HAPAXANTHIC HARUSPICATE HEPTAHEDRAL HEPTANGULAR HEPTAVALENT HYOPLASTRAL HYPALLACTIC HYPOGASTRIA HYPOPLASTRA HYPOTHALAMI IMPANATIONS IMPARKATION IMPARTATION IMPARTIALLY IMPASTATION IMPERATIVAL IMPLACENTAL IMPLANTABLE IMPRACTICAL INADAPTABLE INCAPSULATE INTRAPARTUM IPSELATERAL IPSILATERAL KLEPTOMANIA LANDSCAPIST LAPIDARISTS LAPIDATIONS LATISEPTATE LITHOLAPAXY MAGNATESHIP MAINTOPMAST MAINTOPSAIL MALADAPTIVE MALAPROPIST MALPRACTICE MAMMAPLASTY MAMMOPLASTY MANCIPATING MANCIPATION MANCIPATORY MANIPULATED MANIPULATES MANIPULATOR MARKETPLACE MARPRELATED MARPRELATES MEATPACKERS MEATPACKING MEPROBAMATE METACARPALS METAPHRASED METAPHRASES METAPHRASIS METAPHRASTS METAPLASIAS METAPLASMIC METAPLASTIC MISADAPTING NAPHTHALENE NAPHTHALINE NAPHTHALINS NAPHTHALISE NAPHTHALIZE NATUROPATHS NATUROPATHY NEAPOLITANS NITRAZEPAMS NONADAPTIVE NONCAPITALS NONPARTISAN NONPARTIZAN NYCTALOPIAS OPERATIONAL OPHTHALMIAS PACHYDACTYL PACIFICATED PACIFICATES PACIFICATOR PACKABILITY PACKTHREADS PACLITAXELS PADDLEBOATS PAEDERASTIC PAEDIATRICS PAEDIATRIES PAEDIATRIST PAGEANTRIES PAGINATIONS PAINSTAKERS PAINSTAKING PALACSINTAS PALAEOLITHS PALAEOTYPES PALAEOTYPIC PALAGONITES PALATALISED PALATALISES PALATALIZED PALATALIZES PALATINATES PALATOVELAR PALEOBOTANY PALLIAMENTS PALLIATIONS PALLIATIVES PALMATISECT PALPABILITY PALPEBRATED PALPEBRATES PALPITATING PALPITATION PALUDAMENTA PALUDAMENTS PANARITIUMS PANCRATIAST PANCRATISTS PANCRATIUMS PANCREATINS PANESTHESIA PANICULATED PANISLAMIST PANNACOTTAS PANTAGAMIES PANTAGRAPHS PANTALETTED PANTALETTES PANTALOONED PANTISOCRAT PANTOGRAPHS PANTOGRAPHY PANTOPHOBIA PANTROPICAL PANTRYMAIDS PANTYWAISTS PAPILLOMATA PAPILLULATE PAPULATIONS PARABAPTISM PARABEMATIC PARABLASTIC PARABLEPTIC PARABOLISTS PARACETAMOL PARACHUTING PARACHUTIST PARACROSTIC PARADOCTORS PARADOXISTS PARAGENETIC PARAGONITES PARAKITINGS PARALLACTIC PARALLELIST PARALOGISTS PARAMAGNETS PARAMASTOID PARAMETRISE PARAMETRIZE PARAMOUNTCY PARAMOUNTLY PARANTHELIA PARAPARETIC PARAPENTING PARAPHRASTS PARAPHYSATE PARARTHRIAS PARASITICAL PARASITISED PARASITISES PARASITISMS PARASITIZED PARASITIZES PARASITOIDS PARASITOSES PARASITOSIS PARASTATALS PARATANIWHA PARATHYROID PARATRANSIT PARATROOPER PARATYPHOID PARESTHESIA PARFOCALITY PARIPINNATE PARLIAMENTS PARMACITIES PARRAMATTAS PARTIALISED PARTIALISES PARTIALISMS PARTIALISTS PARTIALIZED PARTIALIZES PARTIALLING PARTIALNESS PARTICIPANT PARTICIPATE PARTICIPIAL PARTICULARS PARTICULATE PARVANIMITY PASQUILANTS PASSAMENTED PASSIONATED PASSIONATES PASSIVATING PASSIVATION PASTEBOARDS PASTEURELLA PASTORALISM PASTORALIST PASTURELAND PATAPHYSICS PATCHBOARDS PATERNALISM PATERNALIST PATHOGRAPHY PATHOPHOBIA PATINATIONS PATRIALISED PATRIALISES PATRIALISMS PATRIALIZED PATRIALIZES PATRIARCHAL PATRIATIONS PATRICIANLY PATRICIATES PATRILINEAL PATRILINEAR PATRIMONIAL PATRISTICAL PATROCLINAL PATROLWOMAN PATRONAGING PEASANTIEST PEASANTRIES PEDANTOCRAT PENETRALIAN PENTACTINAL PENTADACTYL PENTAGONALS PENTAGRAPHS PENTAGYNIAN PENTAHEDRAL PENTANDRIAN PENTANGULAR PENTAQUARKS PENTAVALENT PERAMBULATE PERICHAETIA PERINATALLY PERITONAEAL PESCATARIAN PESCETARIAN PETALOMANIA PHALANGISTS PHALANSTERY PHALLOCRATS PHANTASIAST PHANTASIMES PHANTASMATA PHANTASTICS PHANTASYING PHANTOMATIC PHARMACISTS PHLYCTAENAE PHOSPHATASE PHYTOPLASMA PIACULARITY PINACOTHECA PIRATICALLY PISCATORIAL PISSASPHALT PITAPATTING PLACABILITY PLACATINGLY PLAGIARISTS PLAINCHANTS PLAINSTANES PLANARITIES PLANETARIES PLANETARIUM PLANETOIDAL PLANOBLASTS PLANOGAMETE PLANTATIONS PLANTIGRADE PLANTOCRACY PLANTSCAPES PLANTSWOMAN PLASMATICAL PLASTICALLY PLASTICATED PLASTICWARE PLASTILINAS PLATELAYERS PLATELAYING PLATEMAKERS PLATEMAKING PLATEMARKED PLATTELANDS PLAYABILITY PLAYACTINGS PLEASANTEST PNEUMATICAL POHUTUKAWAS POLYACTINAL POLYMASTIAS POMEGRANATE PORTABELLAS PORTMANTEAU PORTMANTUAS PORTRAYABLE POSTCRANIAL POSTGLACIAL POSTMARITAL POSTNATALLY PRACTICABLE PRACTICABLY PRACTICALLY PRACTICIANS PRACTISANTS PRAEDIALITY PRAETORIANS PRAGMATICAL PRAGMATISED PRAGMATISER PRAGMATISES PRAGMATISMS PRAGMATISTS PRAGMATIZED PRAGMATIZER PRAGMATIZES PRATFALLING PRAVASTATIN PREACQUAINT PREADAMITES PREADAPTING PREADAPTIVE PREAMBULATE PREFATORIAL PREPARATION PREPARATIVE PREPARATORS PREPARATORY PREPATELLAR PREVARICATE PRISMATICAL PROBATIONAL PROCLAIMANT PROCTALGIAS PROCTODAEAL PROFANATION PROFANATORY PROLETARIAN PROLETARIAT PROPAGATING PROPAGATION PROPAGATIVE PROPAGATORS PROTANOMALY PROTANOPIAS PROTHALAMIA PROTHALLIAL PROTOGALAXY PROTONEMATA PTYALAGOGIC PTYALAGOGUE PUFTALOONAS PULSATANCES PULSATILLAS PURGATORIAL PURGATORIAN PURITANICAL PYRACANTHAS PYROGALLATE RACTOPAMINE RADIOPACITY RAPPORTAGES RAPTATORIAL RASPATORIES RATAPLANNED RATTLETRAPS RECEPTACULA REPAGINATED REPAGINATES REPARATIONS REPATRIATED REPATRIATES REPATRIATOR SAINTPAULIA SAPOTACEOUS SATANOPHANY SCAPEGOATED SEMIPALMATE SEPARATIONS SEPARATISMS SEPARATISTS SEPTAVALENT SEPTICAEMIA SEPTIFRAGAL SMARTYPANTS SOMATOPLASM SPACECRAFTS SPALLATIONS SPANAKOPITA SPANIOLATED SPANIOLATES SPANOKOPITA SPARAGMATIC SPARROWFART SPASMATICAL SPASTICALLY SPATANGOIDS SPATHACEOUS SPATIALISED SPATIALISES SPATIALIZED SPATIALIZES SPATTERDASH SPECTACULAR SPERMATHECA SPERMATICAL SPERMATOZOA SPHACELATED SPHACELATES SPIRACULATE STANDPATTER STAPHYLOMAS STEATOPYGAS STEATOPYGIA STRAPHANGED STRAPHANGER STRAPPADOED STRAPPADOES STRATOPAUSE STRIPAGRAMS STRIPPAGRAM SUBPANATION SULPHATASES SUMATRIPTAN SUPERALTARS SUPERNATANT SUPERSTRATA SUPRACOSTAL SYPHILOMATA TABOPARESES TABOPARESIS TACHOGRAPHS TACHYGRAPHS TACHYGRAPHY TACHYPHASIA TACHYPNOEAS TAPHEPHOBIA TAPHOPHOBIA TARPAULINGS TATPURUSHAS TEPPANYAKIS TETRAPLEGIA TETRAPTERAN THANATOPSES THANATOPSIS THAUMATROPE TOPAGNOSIAS TOPGALLANTS TOTIPALMATE TOXOPLASMAS TRANSALPINE TRANSEPTATE TRANSPADANE TRANSPARENT TRANSPHOBIA TRANSPLANTS TRANSPORTAL TRANSPOSALS TRANSSHAPED TRANSSHAPES TRAPEZOIDAL TREPANATION TREPONEMATA TRITANOPIAS TULIPOMANIA TYPOGRAPHIA UNADAPTABLE UNADOPTABLE UNASPIRATED UNIPARENTAL UNPAINTABLE UNPALATABLE UNPALATABLY UNPATHWAYED UNPRACTICAL UNSEPARATED UPGRADATION UPVALUATION URANOPLASTY VAPULATIONS VASOSPASTIC WASTEPAPERS WATCHSTRAPS WATERSCAPES XANTHOPSIAS