There are 684 twelve-letter words containing 2A, L and P, https://www.bestwordlist.com/c/a/4/12letterwordswithaalp.htm
ACAROPHILIES ACATALEPSIES ACATALEPTICS ACUPUNCTURAL ADAPTABILITY
ADAPTATIONAL ADMIRALSHIPS ADOPTABILITY AEROPLANKTON AILUROPHILIA
AILUROPHOBIA ALDERMANSHIP ALEXIPHARMIC ALLELOPATHIC ALLOPATHISTS
ALPHABETICAL ALPHABETISED ALPHABETISER ALPHABETISES ALPHABETIZED
ALPHABETIZER ALPHABETIZES ALPHAMERICAL ALPHANUMERIC ALPHASORTING
ALPHATESTING ALPROSTADILS ALYCOMPAINES AMPELOGRAPHY AMPHIBLASTIC
AMPHISTYLARS AMPULLACEOUS ANAGLYPHICAL ANAGLYPTICAL ANALPHABETES
ANALPHABETIC ANAPAESTICAL ANAPHYLACTIC ANAPHYLAXIES ANAPLASMOSES
ANAPLASMOSIS ANAPTYCTICAL ANENCEPHALIA ANENCEPHALIC ANGIOSPERMAL
ANGLOPHILIAS ANGLOPHOBIAC ANGLOPHOBIAS ANTENUPTIALS ANTEPRANDIAL
ANTHROPOIDAL ANTIPARALLEL ANTIPARTICLE ANTIPETALOUS ANTIPHONALLY
ANTIPHONICAL ANTIPLATELET ANTIPLEASURE ANTISEPALOUS APAGOGICALLY
APLANOGAMETE APLANOSPORES APOCALYPTISM APOCALYPTIST APOCRYPHALLY
APODEICTICAL APOLITICALLY APOLOGETICAL APOPLECTICAL APPARELMENTS
APPARITIONAL APPELLATIONS APPELLATIVES APPENDICULAR APPLAUDINGLY
APPLAUSIVELY APPLICATIONS APPOSITIONAL APPRAISINGLY APPRAISIVELY
APPROACHABLE APPROPRIABLE AQUAPLANINGS ARCHESPORIAL ARCHETYPALLY
ARCHETYPICAL ARCHIPELAGIC ARCHIPELAGOS ARCHIPLASMIC ARCHOPLASMIC
ARCTOPHILIAS ARTHROPLASTY ASPIRATIONAL ASYMPTOTICAL AUTOCEPHALIC
AUTOPLASTIES AUTOPTICALLY AUTOSAMPLERS BACKPADDLING BACKPEDALING
BACKPEDALLED BACKSLAPPERS BACKSLAPPING BACKSPLASHES BATHYPELAGIC
BATTLEPLANES BATTLESPACES BICARPELLARY BIOGRAPHICAL BIPARENTALLY
BRACHYCEPHAL BREASTPLATES CACOPHONICAL CAESALPINOID CALLIGRAPHED
CALLIGRAPHER CALLIGRAPHIC CALYPSONIANS CAMELEOPARDS CAMPANOLOGER
CAPABILITIES CAPACITIVELY CAPERCAILLIE CAPERCAILZIE CAPILLACEOUS
CAPITALISING CAPITALISTIC CAPITALIZING CAPITULARIES CAPITULATING
CAPITULATION CAPITULATORS CAPITULATORY CAPROLACTAMS CAPSULATIONS
CARDINALSHIP CARDIOPLEGIA CARPOLOGICAL CATAPHYLLARY CATAPHYSICAL
CATAPULTIERS CATERPILLARS CEPHALALGIAS CEPHALALGICS CEPHALICALLY
CEPHALOPODAN CHALCOGRAPHY CHAPLAINCIES CHAPLAINRIES CHAPLAINSHIP
CHAPTALISING CHAPTALIZING CLAMJAMPHRIE CLAPBOARDING CLAPPERBOARD
CLAPPERCLAWS CLAPTRAPPERY CLEPTOMANIAC CLEPTOMANIAS COMPLAINANTS
COMPLAISANCE COMPLANATION CONTRAPUNTAL CRYPTANALYST CYCLOPAEDIAS
DECAPITALISE DECAPITALIZE DECAPSULATED DECAPSULATES DEPARTMENTAL
DERMAPLANING DIAPHANOUSLY DIAPOPHYSIAL DICARPELLARY DILAPIDATING
DILAPIDATION DILAPIDATORS DIPLOCARDIAC DIPLOMATICAL DISAPPROVALS
DISPLACEABLE DISPLEASANCE DISPLEASANTS DRAPEABILITY EMPARLAUNCES
EMPATHICALLY EMPHATICALLY ENCAPSULATED ENCAPSULATES ENCEPHALOMAS
ENTOPLASTRAL EPIGRAPHICAL EPISCOPALIAN EPISTOLARIAN EPITHALAMION
EPITHALAMIUM ERGASTOPLASM EXOPHTHALMIA EXPLANATIONS EXPLANTATION
EXTRAPOLATED EXTRAPOLATES EXTRAPOLATOR FACEPLANTING FISSIPALMATE
FLANNELGRAPH FLASHPACKERS FLUORAPATITE FOOTPLATEMAN GALVANOSCOPE
GALVANOSCOPY GAMOPETALOUS GAMOSEPALOUS GASTROPLASTY GEOGRAPHICAL
GLADWRAPPING GLASSPAPERED HAEMOPHILIAC HAEMOPHILIAS HALIPLANKTON
HEMERALOPIAS HEPATOMEGALY HETEROPLASIA HOLOPARASITE HYALOPLASMIC
HYPABYSSALLY HYPERALGESIA HYPERAROUSAL HYPERPLASIAS HYPERSPATIAL
HYPOCALCEMIA HYPOKALEMIAS HYPOSTATICAL HYPOTHALAMIC HYPOTHALAMUS
IMPARTIALITY IMPERATORIAL IMPLANTATION INAPPARENTLY INAPPEASABLE
INAPPELLABLE INAPPLICABLE INAPPLICABLY INCAPABILITY INCAPSULATED
INCAPSULATES INCOMPARABLE INCOMPARABLY INSEPARABLES INTERSPATIAL
IRREPAIRABLE IRREPEALABLE IRREPEALABLY KARYOPLASMIC KARYOTYPICAL
KERATOPLASTY KLEPTOMANIAC KLEPTOMANIAS LALAPALOOZAS LALLAPALOOZA
LAMPADEDROMY LAMPADOMANCY LAMPBLACKING LANDSCAPINGS LANDSCAPISTS
LAPAROSCOPES LAPAROSCOPIC LAPAROTOMIES LARYNGOSPASM LAUREATESHIP
LEUCOPLAKIAS LEUKOPLAKIAS LOGAGRAPHIAS LOLLAPALOOSA LOLLAPALOOZA
LYMPHANGIOMA MACROCEPHALY MAINTOPSAILS MALAPERTNESS MALAPROPISMS
MALAPROPISTS MALLOPHAGOUS MALPRACTICES MANIPULATING MANIPULATION
MANIPULATIVE MANIPULATORS MANIPULATORY MANSPLAINERS MANSPLAINING
MARKETPLACES MARPRELATING MARSHALSHIPS MARSUPIALIAN MEGACEPHALIC
MESENCEPHALA METALEPTICAL METAPHORICAL METAPHYSICAL METENCEPHALA
MISAPPRAISAL MORPHALLAXES MORPHALLAXIS MYCOPLASMATA MYOGRAPHICAL
NANOPARTICLE NANOPLANKTON NAPHTHALENES NAPHTHALINES NAPHTHALISED
NAPHTHALISES NAPHTHALIZED NAPHTHALIZES NONPARALLELS NONPRACTICAL
NONREPAYABLE NONSPATIALLY OCCUPATIONAL OMPHALOMANCY OPERATICALLY
OROGRAPHICAL PADDLEBOARDS PAEDOLOGICAL PAEDOPHILIAC PAEDOPHILIAS
PAINTBALLING PALAEBIOLOGY PALAEOBOTANY PALAEOGRAPHY PALAEOLITHIC
PALAEOLOGIES PALAESTRICAL PALATABILITY PALATALISING PALATALIZING
PALATIALNESS PALATOVELARS PALEOBOTANIC PALEOGRAPHER PALEOGRAPHIC
PALIFICATION PALINGENESIA PALLIATIVELY PALPABLENESS PALPEBRATING
PALPITATIONS PALSGRAVINES PALUDAMENTUM PANICULATELY PANOPTICALLY
PANSEXUALISM PANSEXUALIST PANSEXUALITY PANTALOONERY PANTOMIMICAL
PAPPARDELLES PARABLEPSIES PARABOLISING PARABOLIZING PARABOLOIDAL
PARACETAMOLS PARADIDDLING PARADISAICAL PARADISIACAL PARADOXOLOGY
PARAENETICAL PARAGLIDINGS PARAGLOSSATE PARALANGUAGE PARALDEHYDES
PARALIMNIONS PARALIPOMENA PARALLELINGS PARALLELISED PARALLELISES
PARALLELISMS PARALLELISTS PARALLELIZED PARALLELIZES PARALLELLING
PARALLELWISE PARALOGISING PARALOGISTIC PARALOGIZING PARALYSATION
PARALYSINGLY PARALYZATION PARALYZINGLY PARAMEDICALS PARAMETRICAL
PARAMILITARY PARANOICALLY PARANORMALLY PARANTHELION PARAPHILIACS
PARAPLANNERS PARASAILINGS PARASITOLOGY PARATACTICAL PARENCEPHALA
PARENTERALLY PARFOCALISED PARFOCALISES PARFOCALIZED PARFOCALIZES
PARISYLLABIC PARLOURMAIDS PAROCCIPITAL PAROCHIALISE PAROCHIALISM
PAROCHIALITY PAROCHIALIZE PAROXYSMALLY PARTIALISING PARTIALITIES
PARTIALIZING PARTICIPABLE PARTICIPIALS PARTICULARLY PARTICULATES
PARVIFOLIATE PASSABLENESS PASSACAGLIAS PASSIONATELY PASTEURELLAE
PASTEURELLAS PASTORALISMS PASTORALISTS PASTORALNESS PASTURELANDS
PATERNALISMS PATERNALISTS PATHETICALLY PATHOLOGICAL PATRIALISING
PATRIALITIES PATRIALIZING PATRILINEAGE PATRILOCALLY PATROLOGICAL
PEDANTICALLY PEDICELLARIA PENALISATION PENALIZATION PENTADACTYLE
PENTADACTYLS PENTADACTYLY PENTAGONALLY PENTAPOLITAN PENTARCHICAL
PENTATEUCHAL PENTAVALENCE PENTAVALENCY PERAMBULATED PERAMBULATES
PERAMBULATOR PERICHAETIAL PERORATIONAL PETALOMANIAS PHAEOMELANIN
PHAGOCYTICAL PHALAENOPSES PHALAENOPSIS PHALLOCRATIC PHANTASMALLY
PHANTASMICAL PHARMACOLOGY PHENYLALANIN PHLEGMATICAL PHRAGMOPLAST
PHYLLOMANIAS PHYSIATRICAL PHYTOPLASMAS PIROPLASMATA PISSASPHALTS
PLACABLENESS PLACENTATION PLAGIARISERS PLAGIARISING PLAGIARISTIC
PLAGIARIZERS PLAGIARIZING PLAGIOCLASES PLAGIOCLIMAX PLANETARIUMS
PLANETESIMAL PLANOGAMETES PLANOGRAPHIC PLANTIGRADES PLASMALEMMAS
PLASMODESMAS PLASMOGAMIES PLASMOSOMATA PLASTERBOARD PLASTICWARES
PLASTINATION PLASTOCYANIN PLASTOGAMIES PLATANACEOUS PLATEGLASSES
PLATELAYINGS PLATEMAKINGS PLATEMARKING PLATITUDINAL PLATONICALLY
PLEASANTNESS PLEASANTRIES PLEONASTICAL PLUMULARIANS POLARISATION
POLARIZATION POLAROGRAPHS POLAROGRAPHY POLLYANNAISH POLLYANNAISM
POLYPHARMACY POPULATIONAL PORISMATICAL POSTNEONATAL POSTPRANDIAL
POSTVACCINAL PRACTICALISM PRACTICALIST PRACTICALITY PREAMBULATED
PREAMBULATES PREAPPROVALS PRECAUTIONAL PRECLASSICAL PRECLEARANCE
PREECLAMPSIA PREINAUGURAL PRELAPSARIAN PRELATICALLY PREMALIGNANT
PREMARITALLY PREMAXILLARY PREREHEARSAL PRISMATOIDAL PROCATHEDRAL
PROCELLARIAN PROCLAIMANTS PROCLAMATION PROCLAMATORY PROGRAMMABLE
PROLETARIANS PROLETARIATE PROLETARIATS PROTHALAMION PROTHALAMIUM
PROTONEMATAL PROTOPLASMAL PSEUDOSCALAR PTYALAGOGUES PUFFTALOONAS
PYROGALLATES PYROMANIACAL QUADRAPLEGIA QUADRAPLEGIC QUADRIPLEGIA
RAMPAGEOUSLY RAPSCALLIONS RATAPLANNING REAPPARELING REAPPARELLED
REAPPRAISALS RECAPITALISE RECAPITALIZE RECAPITULATE RECEPTACULAR
RELANDSCAPED RELANDSCAPES REPARABILITY REPLANTATION REPROACHABLE
REPROACHABLY REPUTATIONAL RHOPALOCERAL SAILPLANINGS SAINTPAULIAS
SALESMANSHIP SALTPETREMAN SAPIENTIALLY SAPONIFIABLE SAPROLEGNIAS
SARCOPLASMIC SARSAPARILLA SCAPEGALLOWS SCAPULIMANCY SCAPULOMANCY
SCRATCHPLATE SCROPHULARIA SEMAPHORICAL SEMIPALMATED SEPARABILITY
SEPARATIVELY SEPTILATERAL SERAPHICALLY SINUPALLIATE SLAPHAPPIEST
SOAPOLALLIES SOMATOPLASMS SPACEWALKERS SPACEWALKING SPACIALITIES
SPAGYRICALLY SPANIOLATING SPATIALISING SPATIALITIES SPATIALIZING
SPECIATIONAL SPECTACULARS SPECTATORIAL SPERMATHECAL SPERMATOZOAL
SPHACELATING SPHACELATION SPIROCHAETAL SPLASHBOARDS SPORADICALLY
SPREADEAGLED STAPHYLOMATA SUBLAPSARIAN SUBSCAPULARS SULFORAPHANE
SUPERGLACIAL SUPERNACULAR SUPERNATURAL SUPRACILIARY SUPRACRUSTAL
SUPRAGLOTTAL SUPRALIMINAL SUPRAORBITAL SUPRAVITALLY SYNAPTICALLY
SYNAPTOSOMAL TAPHONOMICAL TAPSALTEERIE TELENCEPHALA TETRAPLEGIAS
TETRAPOLITAN TRAGELAPHINE TRANSALPINES TRANSPIRABLE TRANSPLANTED
TRANSPLANTER TRANSPORTALS TRANSPOSABLE TROPHALLAXES TROPHALLAXIS
TRYPAFLAVINE TRYPANOCIDAL TRYPANOSOMAL TULIPOMANIAS ULTRACOMPACT
UNACCEPTABLE UNACCEPTABLY UNAPPARELLED UNAPPEALABLE UNAPPEALABLY
UNAPPEASABLE UNAPPEASABLY UNAPPLAUSIVE UNAPPLICABLE UNCAPSIZABLE
UNCAPTURABLE UNPARALLELED UNPARDONABLE UNPARDONABLY UNPATENTABLE
UNPLEASANTLY UNPLEASANTRY UNPRELATICAL UNREPAIRABLE UNREPEALABLE
UNREPEATABLE UNREPEATABLY UPVALUATIONS VALPOLICELLA VAPORABILITY
VISUOSPATIAL WALLPAPERING XIPHIPLASTRA ZOOGRAPHICAL