There are 685 twelve-letter words containing A, 2I, P and R, https://www.bestwordlist.com/c/a/5/12letterwordswithaiipr.htm ABIOTROPHIES ABSORPTIVITY ACAROPHILIES ACCIPITRINES ADIAPHORISMS ADIAPHORISTS ADMIRALSHIPS ADSCRIPTIONS ADVISERSHIPS AECIDIOSPORE AILOUROPHILE AILUROPHILES AILUROPHILIA AILUROPHILIC AILUROPHOBIA AILUROPHOBIC ALEXIPHARMIC AMINOPTERINS AMINOPYRINES AMPHIBRACHIC AMPHIGASTRIA ANAPHRODISIA ANGIOGRAPHIC ANISOMORPHIC ANISOTROPIES ANISOTROPISM ANTICIPATORS ANTICIPATORY ANTIENTROPIC ANTIPARTICLE ANTIPERIODIC ANTIPHRASTIC ANTIPRIESTLY ANTIPRURITIC ANTIPYRETICS ANTISTROPHIC APERIODICITY APHRODISIACS APICULTURIST APITHERAPIES APPARATCHIKI APPARITIONAL APPERCEIVING APPERCIPIENT APPERTAINING APPLERINGIES APPORTIONING APPRAISINGLY APPRAISIVELY APPRECIATING APPRECIATION APPRECIATIVE APPRENTICING ARCHIPELAGIC ARCHIPLASMIC ARCTOPHILIAS ARCTOPHILIES ARCTOPHILIST ARPEGGIATING ARPEGGIATION ARTISANSHIPS ASPIRATIONAL ASPIRINGNESS AUDITORSHIPS AZATHIOPRINE BACKSPEIRING BAPTISTERIES BASIDIOCARPS BASIDIOSPORE BIBLIOGRAPHY BIOGRAPHICAL BIOGRAPHISED BIOGRAPHISES BIOGRAPHIZED BIOGRAPHIZES BIOPRIVACIES BIPARTITIONS BIPOLARISING BIPOLARITIES BIPOLARIZING BRINKMANSHIP CALCIPOTRIOL CALLIGRAPHIC CAMPIMETRIES CAPARISONING CAPERCAILLIE CAPERCAILZIE CAPERNOITIES CAPITULARIES CAPRICIOUSLY CARDINALSHIP CARDIOPLEGIA CARTOPHILIES CARTOPHILIST CATADIOPTRIC CHAIRMANSHIP CHAPLAINRIES CHIROGRAPHIC CHIROPRACTIC CLOMIPRAMINE COMPATRIOTIC COMPRIMARIOS CONSPIRACIES CONSPIRACIST CONSPIRATION COPRINCIPALS COPROPHILIAC COPROPHILIAS CORIVALSHIPS CORRIVALSHIP CREPITATIONS DEASPIRATING DEASPIRATION DEPILATORIES DEPOLARISING DEPOLARIZING DEPOSITARIES DEPRECIATING DEPRECIATION DEPRECIATIVE DEPRIVATIONS DESIPRAMINES DESPAIRINGLY DIAGEOTROPIC DIAMORPHINES DIAPHORETICS DIAPHRAGMING DIASTROPHISM DICTATORSHIP DILAPIDATORS DIOPTRICALLY DIPLOCARDIAC DIPRIONIDIAN DISAPPEARING DISAPPROVING DISCIPLINARY DISCOGRAPHIC DISOPERATION DISPAUPERING DISPAUPERISE DISPAUPERIZE DISPENSARIES DISPRIVACIED DISPROPRIATE DITTOGRAPHIC DOLPHINARIUM DOPAMINERGIC DRAPEABILITY EARSPLITTING EMPARADISING EPHEMERIDIAN EPICHEIREMAS EPICUREANISM EPICUTICULAR EPIGRAMMATIC EPIGRAPHICAL EPIGRAPHISTS EPIRRHEMATIC EPISTOLARIAN EPISTOLARIES EQUIPARATING EQUIPARATION EXAMINERSHIP EXOPARASITIC EXPATRIATING EXPATRIATION EXPATRIATISM EXPERIENTIAL EXTIRPATIONS FIRESCAPINGS FISSIPARISMS FORCIPATIONS FORTEPIANIST GALLINIPPERS GIFTWRAPPING GRAPHICACIES GRAPHITISING GRAPHITIZING GRAVITROPISM GUARDIANSHIP HAGIOGRAPHIC HAIRSPLITTER HELIOGRAPHIC HEMIPARASITE HEPARINISING HEPARINIZING HIEROGRAPHIC HIEROPHANTIC HIEROPHOBIAS HIPPIATRISTS HIPPOCREPIAN HORRIPILATED HORRIPILATES HYPERACIDITY HYPERKINESIA HYPERLIPEMIA HYPOCRITICAL ICHNOGRAPHIC ICONOGRAPHIC IDEOGRAPHIES IDEOPRAXISTS IMPARADISING IMPARKATIONS IMPARTATIONS IMPARTIALITY IMPERATIVELY IMPERATORIAL IMPERIALISED IMPERIALISES IMPERIALISMS IMPERIALISTS IMPERIALIZED IMPERIALIZES IMPERIALNESS IMPERISHABLE IMPERISHABLY IMPETRATIONS IMPIERCEABLE IMPIGNORATED IMPIGNORATES IMPLICATURES IMPLORATIONS IMPORTANCIES IMPORTATIONS IMPRECATIONS IMPREGNATING IMPREGNATION IMPRESSIONAL IMPRISONABLE IMPROBATIONS IMPROPRIATED IMPROPRIATES IMPROPRIATOR IMPROVISATED IMPROVISATES IMPROVISATOR INEXTIRPABLE INFOGRAPHICS INSPECTORIAL INSPIRATIONS INSPISSATORS INTERLAPPING INTERPARTIES INTERPLAYING INTERPLUVIAL INTERSPACING INTERSPATIAL INTRAPSYCHIC INTRASPECIES IPRATROPIUMS IRRECIPROCAL IRREPAIRABLE IRRESPIRABLE ISODIAPHERES ISOMETROPIAS ISOPRENALINE JANITORSHIPS JAPONAISERIE JEOPARDISING JEOPARDIZING LEXIGRAPHIES LIPOGRAPHIES LITHOGRAPHIC LIVETRAPPING MADREPORITIC MALIMPRINTED MARLINESPIKE MARLINGSPIKE MARLINSPIKES MARSUPIALIAN MARZIPANNING MEDIATORSHIP METAPERIODIC METEMPIRICAL MICROGRAPHIC MICROPARTIES MICROPLASTIC MICROPOLITAN MILLIAMPERES MIMOGRAPHIES MISANTHROPIC MISAPPRAISAL MULTIPARTIES MULTIPARTITE NECROPHILIAC NECROPHILIAS NONEMPIRICAL NONPARASITIC OLIGOSPERMIA OMNIPARITIES OPERATIONISM OPERATIONIST OPHIDIARIUMS OPHIOLATRIES OPINIONATORS OVERPAINTING OVERPRAISING PACIFICATORS PACIFICATORY PAEDIATRISTS PALINDROMIST PANARTHRITIS PANCREATITIS PANEGYRISING PANEGYRIZING PARABOLISING PARABOLIZING PARADIDDLING PARADIGMATIC PARADISAICAL PARADISIACAL PARADOXIDIAN PARAFFINIEST PARAGLIDINGS PARALIMNIONS PARALOGISING PARALOGISTIC PARALOGIZING PARAMILITARY PARAPERIODIC PARAPHILIACS PARAPHIMOSIS PARASAILINGS PARASITAEMIA PARASITICIDE PARASITISING PARASITIZING PARASTICHIES PARASUICIDES PARISHIONERS PARISYLLABIC PARKINSONIAN PARKINSONISM PAROCCIPITAL PAROCHIALISE PAROCHIALISM PAROCHIALITY PAROCHIALIZE PARSIMONIOUS PARTIALISING PARTIALITIES PARTIALIZING PARTICIPABLE PARTICIPANTS PARTICIPATED PARTICIPATES PARTICIPATOR PARTICIPIALS PARTISANSHIP PARTITIONERS PARTITIONING PARTITIONIST PARTIZANSHIP PARTURITIONS PARVIFOLIATE PASIGRAPHIES PASSIONARIES PASTEURISING PASTEURIZING PATRIALISING PATRIALITIES PATRIALIZING PATRIARCHIES PATRIARCHISM PATRICLINOUS PATRILINEAGE PATRISTICISM PATROCLINIES PECULIARISED PECULIARISES PECULIARIZED PECULIARIZES PEDIATRICIAN PEDICELLARIA PENITENTIARY PENSIONARIES PENTACRINOID PERACIDITIES PERENNIALITY PERFOLIATION PERICARDITIC PERICARDITIS PERICARDIUMS PERICHAETIAL PERICHAETIUM PERICHONDRIA PERICLITATED PERICLITATES PERICRANIUMS PERIMETRICAL PERIODICALLY PERIODONTIAS PERIPATETICS PERIPHERICAL PERIPHRASING PERIPHRASTIC PERISTALITHS PERISTOMATIC PERMEABILITY PEROXIDATION PERSPICACITY PERSPIRATING PERSPIRATION PERTINACIOUS PERVICACIOUS PETRIFACTION PETRIFACTIVE PHARISEEISMS PHILANDERING PHILHARMONIC PHYSIATRICAL PHYSIATRISTS PHYSICIANERS PHYSIOCRATIC PICORNAVIRUS PICROCARMINE PICTOGRAPHIC PICTORIALISE PICTORIALISM PICTORIALIST PICTORIALIZE PICTORICALLY PIGNERATIONS PIGNORATIONS PILGRIMAGERS PILGRIMAGING PILOCARPINES PLAGIARISERS PLAGIARISING PLAGIARISTIC PLAGIARIZERS PLAGIARIZING PLAGIOTROPIC PLANIMETRIES PLANISPHERIC PLASTICISERS PLASTICIZERS PLAYWRITINGS PLEBISCITARY PLEINAIRISMS PLEINAIRISTS PLURILITERAL PLURISERIATE POLARIMETRIC POLARISATION POLARISCOPIC POLARIZATION POLITICASTER PONTIFICATOR POPULARISING POPULARITIES POPULARIZING PORCELAINISE PORCELAINIZE PORISMATICAL PORTRAITISTS POSTIMPERIAL POSTLIMINARY POSTMERIDIAN POTENTIARIES PRACTICALISM PRACTICALIST PRACTICALITY PRACTITIONER PRAGMATICISM PRAGMATICIST PRAGMATISING PRAGMATISTIC PRAGMATIZING PREACHIFYING PREADMISSION PREADMITTING PREAMPLIFIER PREASSIGNING PRECHRISTIAN PRECIPITABLE PRECIPITANCE PRECIPITANCY PRECIPITANTS PRECIPITATED PRECIPITATES PRECIPITATOR PRECISIANISM PRECISIANIST PRECONCILIAR PREDIABETICS PREDIALITIES PREDICATIONS PREFINANCING PREFOLIATION PREGNABILITY PREHISTORIAN PRELIBATIONS PREMIGRATION PREOBTAINING PREORDAINING PREPRIMARIES PREQUALIFIED PREQUALIFIES PRESIDENTIAL PRESIGNALING PRESTIGIATOR PREVAILINGLY PREVISIONARY PRIMATESHIPS PRIMIGRAVIDA PRIMOGENITAL PRIMORDIALLY PRINCIPALITY PRINTABILITY PRINTMAKINGS PRISMATOIDAL PRIVATEERING PROBABILISMS PROBABILISTS PROBOSCIDIAN PRODIGALISED PRODIGALISES PRODIGALIZED PRODIGALIZES PROFLIGACIES PROLIFICALLY PROPANEDIOIC PROPITIATING PROPITIATION PROPITIATIVE PROPITIATORS PROPITIATORY PROTACTINIUM PROTEINURIAS PROVEABILITY PROVIDENTIAL PROVINCIALLY PROVISIONALS PROVISIONARY PROXIMATIONS PRUSSIANISED PRUSSIANISES PRUSSIANIZED PRUSSIANIZES PSYCHIATRIES PSYCHIATRIST PTERIDOMANIA PUPILARITIES PURIFICATION PURIFICATIVE PURIFICATORS PURIFICATORY PURISTICALLY PURITANISING PURITANIZING PYRIDOXAMINE PYRITHIAMINE QUADRIPHONIC QUADRIPLEGIA QUADRIPLEGIC RADIOGRAPHIC RADIOISOTOPE RADIOPAGINGS RADIOPHONICS RADIOPHONIES RADIOPHONIST RADIOSCOPIES RAINPROOFING REALPOLITIKS REAPPOINTING REAPPRAISING RECAPITALISE RECAPITALIZE REDISPLAYING REEXPLAINING REIMPLANTING RELATIONSHIP REPAGINATING REPAGINATION REPARABILITY REPARTITIONS REPATRIATING REPATRIATION REPETITIONAL REPLICATIONS REPOLARISING REPOLARIZING REPRIMANDING REPRISTINATE REPRIVATISED REPRIVATISES REPRIVATIZED REPRIVATIZES REPUDIATIONS REPUTABILITY RESPIRATIONS RESUPINATION RETAINERSHIP RETINISPORAS RETROPHILIAC RETROPHILIAS RHAPSODISING RHAPSODISTIC RHAPSODIZING RHINOPHONIAS RHINOPLASTIC SCHIZOCARPIC SCINTIGRAPHY SCISSIPARITY SEMIPARASITE SEMITROPICAL SEPARABILITY SEPARATISTIC SEPIOSTAIRES SERIGRAPHIES SIDEROPENIAS SPEARFISHING SPECIALISERS SPECIALIZERS SPHAIRISTIKE SPHERICALITY SPHINCTERIAL SPHRAGISTICS SPIRITUALISE SPIRITUALISM SPIRITUALIST SPIRITUALITY SPIRITUALIZE SPIROGRAPHIC SPORTABILITY STREPITATION SUBPRINCIPAL SUPERABILITY SUPERCILIARY SUPERFICIALS SUPRACILIARY SUPRALIMINAL SUSPIRATIONS TAPSIETEERIE TEMPERALITIE TRAINEESHIPS TRAITORSHIPS TRAMPOLINING TRAMPOLINIST TRANSHIPPING TRANSPACIFIC TREPHINATION TREPIDACIOUS TREPIDATIONS TREPIDATIOUS TRICUSPIDATE TRIGLYPHICAL TRIPALMITINS TRIPARTITELY TRIPARTITION TRIPINNATELY TRIPLICATING TRIPLICATION TRIPUDIATING TRIPUDIATION TRIUMPHALISM TRIUMPHALIST TROPICALISED TROPICALISES TROPICALIZED TROPICALIZES UNASPIRINGLY UNDESPAIRING UNPARADISING UNPREVAILING UPBRAIDINGLY UTOPIANISERS UTOPIANIZERS VAPORABILITY VAPORISATION VAPORIZATION VAPOROSITIES VESPERTILIAN VIBRAHARPIST VIBRAPHONIST VITUPERATING VITUPERATION VITUPERATIVE VIVIPARITIES VIVIPAROUSLY WIRETAPPINGS XIPHIPLASTRA ZINCOGRAPHIC ZINJANTHROPI