There are 684 twelve-letter words containing A, G, 2I and L, https://www.bestwordlist.com/c/a/5/12letterwordswithagiil.htm
ABORIGINALLY ABSOLUTISING ABSOLUTIZING ADULTERISING ADULTERIZING
AEROSOLISING AEROSOLIZING AETIOLOGICAL AETIOLOGISTS AGNOIOLOGIES
AGREEABILITY AGRICHEMICAL AIGUILLETTES ALBUMENISING ALBUMENIZING
ALBUMINISING ALBUMINIZING ALCOHOLISING ALCOHOLIZING ALKALINISING
ALKALINIZING ALLEGORISING ALLEGORIZING ALLITERATING ALMIGHTINESS
AMELIORATING ANGLOPHILIAS ANGUILLIFORM ANGULARITIES ANNIHILATING
ANTIALIASING ANTIALLERGIC ANTICLOTTING ANTIFOULINGS ANTIGAMBLING
ANTIGLOBULIN ANTILYNCHING ANTIRELIGION APOSTOLISING APOSTOLIZING
APPETISINGLY APPETIZINGLY APPLERINGIES APPRAISINGLY ARCHIPELAGIC
ARISTOLOGIES ARTICULATING ASSIBILATING ASSIMILATING ASSOILZIEING
AUDIBILIZING AUDIOLOGICAL AUDIOLOGISTS AUTODIALLING AUTOMOBILING
BACKFILLINGS BACKFLIPPING BACKLIGHTING BACKSLIDINGS BESTIALISING
BESTIALIZING BIBLIOGRAPHY BILINGUALISM BILINGUALITY BILLBOARDING
BILLINGSGATE BIOGENETICAL BIOGRAPHICAL BIOLOGICALLY BIPOLARISING
BIPOLARIZING BLACKBIRDING BLACKLISTING BLACKMAILING BOARDSAILING
BOATBUILDING BOILERMAKING BOUGAINVILIA BRICKLAYINGS BRILLIANTING
BULLBAITINGS BURGLARISING BURGLARIZING CALIGINOSITY CALLIGRAPHIC
CALUMNIATING CANCELIERING CANTILLATING CAPITALISING CAPITALIZING
CAPITULATING CARAMELISING CARAMELIZING CARDIOLOGIES CARDIOLOGIST
CARDIOPLEGIA CARILLONNING CATABOLISING CATABOLIZING CATALOGISING
CATALOGIZING CENTRALISING CENTRALIZING CHANNELISING CHANNELIZING
CHAPTALISING CHAPTALIZING CHARBROILING CHARGRILLING CHILDBEARING
CHLORIDATING CHLORINATING CIRCULATINGS CLASSICISING CLASSICIZING
CLEISTOGAMIC CLICKJACKING CLIFFHANGING CLIMATOLOGIC CLISTOGAMIES
COGITATINGLY COGITATIVELY COLLEGIALISM COLLEGIALITY COLLIGATIONS
COLLIQUATING COMPLAININGS COMPLICATING CONCILIATING CONGENIALITY
CORDIALISING CORDIALIZING CORRIVALLING CRANIOLOGIES CRANIOLOGIST
CRYSTALISING CRYSTALIZING DAYLIGHTINGS DEBILITATING DECALCIFYING
DECIMALISING DECIMALIZING DEGLACIATION DELAMINATING DELEGITIMATE
DELIBERATING DELIMITATING DELOCALISING DELOCALIZING DEMORALISING
DEMORALIZING DENTILINGUAL DEOPPILATING DEPOLARISING DEPOLARIZING
DESALINATING DESALINISING DESALINIZING DESPAIRINGLY DEVALORISING
DEVALORIZING DEVITALISING DEVITALIZING DEVOCALISING DEVOCALIZING
DIAGNOSTICAL DIAGONALISED DIAGONALISES DIAGONALIZED DIAGONALIZES
DIALOGICALLY DIFFRANGIBLE DIGITALISING DIGITALIZING DIGLADIATING
DIGLADIATION DIGLADIATORS DIGRESSIONAL DILACERATING DILAPIDATING
DILUCIDATING DISANALOGIES DISANNULLING DISCULPATING DISENSLAVING
DISENTAILING DISGAVELLING DISHALLOWING DISMANTLINGS DIVULGATIONS
DOMINATINGLY DOVETAILINGS EARLIERISING EARLIERIZING EARSPLITTING
EGALITARIANS EGOISTICALLY ELASTICATING ELASTICISING ELASTICIZING
EMIGRATIONAL EPIGRAPHICAL ESTABLISHING ETERNALISING ETERNALIZING
EULOGISTICAL EVANGELICISM EVANGELISING EVANGELISTIC EVANGELIZING
EXFILTRATING EXHILARATING FACILITATING FACSIMILEING FATIGABILITY
FAULTFINDING FEDERALISING FEDERALIZING FELICITATING FIBRILLATING
FIBROMYALGIA FIGURABILITY FIGURATIVELY FILLAGREEING FISSILINGUAL
FLAGITATIONS FLAGITIOUSLY FLIMFLAMMING FLUORIDATING FLUORINATING
FORGEABILITY FRANGIBILITY FUNGICIDALLY GAINLINESSES GALIMATIASES
GALLIARDISES GALLIGASKINS GALLINIPPERS GALLIVANTING GANCICLOVIRS
GANGLIOSIDES GEANTICLINAL GEANTICLINES GELATINATING GELATINATION
GELATINISERS GELATINISING GELATINIZERS GELATINIZING GENERALISING
GENERALITIES GENERALIZING GENICULATING GENICULATION GEOPOLITICAL
GIGANTICALLY GILLRAVAGING GILRAVITCHED GILRAVITCHES GLACIOLOGIES
GLACIOLOGIST GLADIATORIAL GLADIATORIAN GLAIRINESSES GLAMOURISING
GLAMOURIZING GLOBIGERINAE GLOBIGERINAS GOALKICKINGS GOLIARDERIES
GOLIATHISING GOLIATHIZING GRADUALISTIC GRADUALITIES GRANOLITHICS
GRATIFYINGLY GRATILLITIES GREENMAILING GUERILLAISMS GUERRILLAISM
GYNIOLATRIES HABILITATING HAGIOLATRIES HAGIOLOGICAL HAGIOLOGISTS
HAIRSTYLINGS HARLEQUINING HELIOGRAPHIC HESITATINGLY HIEROLOGICAL
HIGHFALUTING HIGHFALUTINS HILLWALKINGS HISTOLOGICAL HOOLIGANISMS
HYGIENICALLY ICHNOLOGICAL ICONOLOGICAL IDIOGLOSSIAS IDOLATRISING
IDOLATRIZING IGNITABILITY ILLAQUEATING ILLEGALISING ILLEGALITIES
ILLEGALIZING ILLEGITIMACY ILLEGITIMATE ILLOGICALITY ILLUMINATING
ILLUSTRATING IMPANNELLING INCOGNISABLE INCOGNIZABLE INCREASINGLY
INELEGANCIES INFIBULATING INFILTRATING INITIALISING INITIALIZING
INOSCULATING INSALIVATING INSUFFLATING INTERDEALING INTERDIGITAL
INTERGLACIAL INTERLAPPING INTERLARDING INTERLEAVING INTERLINGUAL
INTERLINGUAS INTERPLAYING INTERRAILING INTERTILLAGE INTERVILLAGE
INTREATINGLY INVALIDATING INVESTIGABLE INVIGILATING INVIGILATION
INVIGILATORS IRREGULARITY IRRIGATIONAL IRRITATINGLY ITALIANATING
ITALIANISING ITALIANIZING JACKLIGHTING JAILBREAKING JOURNALISING
JOURNALIZING LAMINARISING LAMINARIZING LANDFILLINGS LANDSKIPPING
LANGBEINITES LANGUISHINGS LARYNGITIDES LARYNGITISES LATERALISING
LATERALIZING LEGALISATION LEGALIZATION LEGIONNAIRES LEGISLATIONS
LEGISLATIVES LEGITIMACIES LEGITIMATELY LEGITIMATING LEGITIMATION
LEGITIMATISE LEGITIMATIZE LEGITIMATORS LETHARGISING LETHARGIZING
LEXICALISING LEXICALIZING LEXIGRAPHIES LIBERALISING LIBERALIZING
LIBERTINAGES LIFEGUARDING LIGULIFLORAL LIMACOLOGIES LIMACOLOGIST
LIMNOLOGICAL LINEBACKINGS LINECASTINGS LINGUISTICAL LIPOGRAPHIES
LITERALISING LITERALIZING LITHOGRAPHIC LITHOLOGICAL LITURGICALLY
LIVETRAPPING LOGICALITIES LOGISTICALLY LOGISTICIANS LONGITUDINAL
LYMPHANGITIC LYMPHANGITIS MADRIGALISTS MAGISTRALITY MAGNIFICALLY
MAILGRAMMING MAILSHOTTING MALIGNANCIES MANIPULATING MANSPLAINING
MARGINALISED MARGINALISES MARGINALISMS MARGINALISTS MARGINALIZED
MARGINALIZES MARLINGSPIKE MEDALLIONING MEDICALISING MEDICALIZING
METABOLISING METABOLIZING METALLIDINGS MICROLOGICAL MILITARISING
MILITARIZING MILLIGAUSSES MILLIGRAMMES MINERALISING MINERALIZING
MINERALOGIES MINERALOGISE MINERALOGIST MINERALOGIZE MISALIGNMENT
MISALLOTTING MISBALANCING MISHANDLINGS MISLABELLING MISLABOURING
MISLEADINGLY MISPLEADINGS MONSIGNORIAL MUCILAGINOUS MULTIGRAVIDA
MULTILINGUAL MULTITASKING MUSICALISING MUSICALIZING NATURALISING
NATURALIZING NAVIGABILITY NAVIGATIONAL NEUTRALISING NEUTRALIZING
NIGGARDLIEST NIGHTINGALES NITROGELATIN NOBILITATING NOMINALISING
NOMINALIZING NUCLEARISING NUCLEARIZING OBLIGATIONAL OBLIGATORILY
OBLITERATING OBNUBILATING OLIGARCHICAL OLIGOPHAGIES OLIGOSPERMIA
OPHIOLOGICAL OPTIMALISING OPTIMALIZING ORIGINALISMS ORIGINALISTS
OUTCAVILLING OUTRIVALLING OVERCLAIMING PAINTBALLING PALATALISING
PALATALIZING PALINGENESIA PALINGENESIS PALINGENETIC PARABOLISING
PARABOLIZING PARADIDDLING PARAGLIDINGS PARALOGISING PARALOGISTIC
PARALOGIZING PARASAILINGS PARTIALISING PARTIALIZING PATRIALISING
PATRIALIZING PATRILINEAGE PHILANDERING PHILOLOGIANS PHILOLOGICAL
PIECEMEALING PILGRIMAGERS PILGRIMAGING PLACEKICKING PLAGIARISERS
PLAGIARISING PLAGIARISTIC PLAGIARIZERS PLAGIARIZING PLAGIOCLIMAX
PLAGIOTROPIC PLASTICISING PLASTICIZING PLAYWRITINGS POLYGAMISING
POLYGAMIZING POPULARISING POPULARIZING POSTILLATING PREGNABILITY
PRESIGNALING PREVAILINGLY PRIMOGENITAL PRODIGALISED PRODIGALISES
PRODIGALIZED PRODIGALIZES PROFLIGACIES PSALMODISING PSALMODIZING
PUGILISTICAL QUADRIPLEGIA QUADRIPLEGIC QUITCLAIMING RADICALISING
RADICALIZING RADIOBIOLOGY RADIOLOGICAL RADIOLOGISTS RAILROADINGS
REACCLAIMING RECANALISING RECANALIZING REDISPLAYING REEXPLAINING
REGIONALISED REGIONALISES REGIONALISMS REGIONALISTS REGIONALIZED
REGIONALIZES REGULARISING REGULARITIES REGULARIZING REIMPLANTING
REINSTALLING RELATIVISING RELATIVIZING REMORALISING REMORALIZING
REPOLARISING REPOLARIZING REQUALIFYING RETICULATING REVALIDATING
REVALORISING REVALORIZING REVICTUALING REVITALISING REVITALIZING
RHINOLOGICAL ROADBUILDING RUMINATINGLY SACRILEGIOUS SACRILEGISTS
SAILBOARDING SAILBOATINGS SAILPLANINGS SALICYLATING SALPIGLOSSIS
SANGUINARILY SATISFYINGLY SCANDALISING SCANDALIZING SCARIFYINGLY
SECULARISING SECULARIZING SEIGNIORALTY SEMIOLOGICAL SENSUALISING
SENSUALIZING SHIPLAPPINGS SHIRTTAILING SIGILLARIANS SIGILLATIONS
SIMULCASTING SINGULARISED SINGULARISES SINGULARISMS SINGULARISTS
SINGULARIZED SINGULARIZES SKILLIGALEES SLACKLININGS SLOGANISINGS
SLOGANIZINGS SMIFLIGATING SOCIALISINGS SOCIALIZINGS SOCIOLOGICAL
SPANIOLATING SPANIOLISING SPANIOLIZING SPATIALISING SPATIALIZING
SPECIALISING SPECIALIZING SPIFLICATING STREAMLINING STRIDULATING
STROBILATING STUDDINGSAIL SUPPLICATING SUSTAININGLY SYLLABIFYING
TABULARISING TABULARIZING TAILHOPPINGS TAILORMAKING TAILSPINNING
TANTALISINGS TANTALIZINGS TEXTUALIZING THERMALISING THERMALIZING
TIMETABLINGS TRAGICOMICAL TRAILBLAZING TRAMPOLINING TRIBOLOGICAL
TRICHOGYNIAL TRIGLYPHICAL TRILINGUALLY TRIPLICATING TRIVIALISING
TRIVIALIZING UGLIFICATION UNASPIRINGLY UNAVAILINGLY UNGAINLINESS
UNIMAGINABLE UNIMAGINABLY UNINSTALLING UNMORALISING UNMORALIZING
UNPREVAILING UNQUALIFYING UPBRAIDINGLY URINOGENITAL USTILAGINOUS
VAGINICOLINE VAGINICOLOUS VAINGLORIOUS VAINGLORYING VESICULATING
VIGILANTISMS VIGILANTNESS VILLAINIZING VIRGINALISTS VIRGINALLING
VIRTUALISING VIRTUALIZING VITILITIGATE VITRIOLATING VOLATILISING
VOLATILIZING WALKINGSTICK WELLINGTONIA WHIGMALEERIE WHILLYWHAING
WHIPSTALLING WILDCATTINGS WILLIEWAUGHT WINDLOADINGS