There are 644 twelve-letter words containing A, C, I, L and Y, https://www.bestwordlist.com/c/a/5/12letterwordswithacily.htm
ACADEMICALLY ACCENTUALITY ACCIDENTALLY ACCUSATIVELY ACETYLATIONS
ACHLORHYDRIA ACHLORHYDRIC ACOUSTICALLY ACROSTICALLY ADJECTIVALLY
ADJUNCTIVELY AFFLICTIVELY ALCHEMICALLY ALCOHOLICITY ALCYONARIANS
ALLYCHOLLIES ALYCOMPAINES AMITOTICALLY AMOXYCILLINS AMYLOPECTINS
ANAGLYPHICAL ANAGLYPTICAL ANAGOGICALLY ANALOGICALLY ANALYTICALLY
ANAPHYLACTIC ANAPTYCTICAL ANARCHICALLY ANATOMICALLY ANELASTICITY
ANISODACTYLS ANTICATALYST ANTICYCLONES ANTICYCLONIC ANTILYNCHING
ANTISOCIALLY AORISTICALLY APAGOGICALLY APOCALYPTISM APOCALYPTIST
APOLITICALLY APOSTOLICITY ARCHETYPICAL AROMATICALLY ARTICULATELY
ARTICULATORY ARTIFICIALLY ARTIODACTYLS ARTISTICALLY ASTRICTIVELY
ASYMMETRICAL ASYMPTOTICAL ATHLETICALLY ATTRACTINGLY ATTRACTIVELY
AURICULATELY AUSPICIOUSLY AUTISTICALLY AUTOECIOUSLY AUTOPTICALLY
AVARICIOUSLY AVASCULARITY AVUNCULARITY BACTERIOLOGY BALLETICALLY
BARBARICALLY BATHETICALLY BATHYPELAGIC BEATIFICALLY BELLYACHINGS
BENEFICIALLY BICARPELLARY BINOCULARITY BIOCATALYSES BIOCATALYSIS
BIOCATALYSTS BIOCATALYTIC BIODYNAMICAL BIOLOGICALLY BIONOMICALLY
BRACHYLOGIES BRICKLAYINGS CAESPITOSELY CALAMITOUSLY CALIGINOSITY
CALUMNIATORY CALUMNIOUSLY CALYCOIDEOUS CALYPSONIANS CANTILLATORY
CAPACITIVELY CAPITULATORY CAPRICIOUSLY CARBYLAMINES CARDIOMEGALY
CARTOONISHLY CATAPHYSICAL CATEGORIALLY CATHODICALLY CATHOLICALLY
CATIONICALLY CELEBREALITY CENTENNIALLY CENTESIMALLY CEPHALICALLY
CEREMONIALLY CHALCOPYRITE CHASTENINGLY CHERUBICALLY CHIMERICALLY
CHIVALROUSLY CHOLERICALLY CLAIRVOYANCE CLAIRVOYANCY CLAIRVOYANTS
CLASSICALITY CLATTERINGLY CLEANABILITY CLEAVABILITY CLIMATICALLY
CLINDAMYCINS CLUBBABILITY COGITATINGLY COGITATIVELY COGNOMINALLY
COLLEGIALITY COLLEGIATELY COLLINEARITY COLLOIDALITY COLLOQUIALLY
COLORABILITY COMMANDINGLY COMMENSALITY COMMERCIALLY COMMUNICABLY
CONCEALINGLY CONCHOIDALLY CONCILIATORY CONGENIALITY CONGENITALLY
CONNUBIALITY CONSCIONABLY CONSIDERABLY CONTAGIOUSLY CONTINUALITY
CONTRACTIBLY CONVIVIALITY COORDINATELY COPULATIVELY CORPOREALITY
COSMETICALLY COUNTABILITY CROSSABILITY CRUSHABILITY CRYOSURGICAL
CRYSTALISERS CRYSTALISING CRYSTALIZERS CRYSTALIZING CRYSTALLINES
CRYSTALLISED CRYSTALLISER CRYSTALLISES CRYSTALLITES CRYSTALLITIC
CRYSTALLITIS CRYSTALLIZED CRYSTALLIZER CRYSTALLIZES CRYSTALLOIDS
CUBISTICALLY CUMULATIVELY CURVACIOUSLY CYBERNETICAL CYCLAZOCINES
CYCLISATIONS CYCLIZATIONS CYCLOGRAPHIC CYCLONICALLY CYCLOPAEDIAS
CYCLOPAEDIST CYCLOPLEGIAS CYCLOTHYMIAC CYCLOTHYMIAS CYTOCHALASIN
CYTOCHEMICAL DACTYLICALLY DACTYLIOLOGY DECALCIFYING DECASYLLABIC
DECIDABILITY DECORATIVELY DECREASINGLY DEMONIACALLY DESPOTICALLY
DETRACTINGLY DETRACTIVELY DIABOLICALLY DIALECTOLOGY DIALOGICALLY
DIALYTICALLY DIATONICALLY DICARBOXYLIC DICARPELLARY DICHOTICALLY
DIDACTICALLY DIDACTYLISMS DIETETICALLY DIOPTRICALLY DISCIPLINARY
DISCORDANTLY DISCREPANTLY DISLOCATEDLY DISSOCIALITY DISTRACTEDLY
DIURETICALLY DIVARICATELY DOCTRINALITY DOGMATICALLY DOMESTICALLY
DRACONICALLY DRAMATICALLY DUODECIMALLY DYNASTICALLY DYSCALCULIAS
ECLECTICALLY ECLIPTICALLY ECOLOGICALLY ECONOMICALLY ECOTYPICALLY
ECSTATICALLY ECUMENICALLY EFFECTUALITY EGOISTICALLY ELECTABILITY
ELECTORIALLY ELECTRICALLY ELLIPTICALLY ELOCUTIONARY EMPATHICALLY
EMPHATICALLY ENCHANTINGLY ENCLITICALLY ENCYCLOPEDIA ENTRANCINGLY
ENTROPICALLY ENZOOTICALLY EPICYCLOIDAL EPIDEMICALLY EPISODICALLY
EQUIVOCALITY ESOTERICALLY ESTHETICALLY ETYMOLOGICAL EUPHONICALLY
EUPHORICALLY EURHYTHMICAL EUSTATICALLY EXCITABILITY EXCLUSIONARY
EXECRATIVELY EXEGETICALLY EXOTERICALLY EXTRACTIVELY FACILITATORY
FACTITIOUSLY FAIRNYTICKLE FAIRNYTICLES FALLACIOUSLY FASCICULARLY
FASCINATEDLY FICTIONALITY FORENSICALLY FRACTIONALLY FRENETICALLY
FRICTIONALLY FUNCTIONALLY FUNGICIDALLY GALVANICALLY GENICULATELY
GEODETICALLY GEODYNAMICAL GEOLOGICALLY GEOSYNCLINAL GIGANTICALLY
GLYCERINATED GLYCERINATES GLYCOSIDASES GNOMONICALLY GRANULOCYTIC
GRASSCYCLING GYNAECOLOGIC HAEMATOXYLIC HARMONICALLY HATCHABILITY
HELICOIDALLY HELLACIOUSLY HEPATICOLOGY HERALDICALLY HERBICIDALLY
HERMETICALLY HERMITICALLY HEXADACTYLIC HIERATICALLY HISTORICALLY
HOLISTICALLY HOMEOTYPICAL HORRIFICALLY HYALOPLASMIC HYDRAULICKED
HYDROCEPHALI HYDROELASTIC HYDROLOGICAL HYDRONICALLY HYGIENICALLY
HYMNOLOGICAL HYPERALGESIC HYPERBOLICAL HYPERDULICAL HYPERPLASTIC
HYPERTYPICAL HYPNOLOGICAL HYPNOTICALLY HYPOCALCEMIA HYPOCALCEMIC
HYPOCRITICAL HYPOGLYCEMIA HYPOSTATICAL HYPOTHALAMIC HYPOTHETICAL
HYPOVOLAEMIC HYSTERICALLY ICHTHYOCOLLA ICHTHYOLATRY ILLEGITIMACY
ILLOGICALITY IMMACULATELY INACCESSIBLY INACCURATELY INAPPLICABLY
INARTICULACY INCALCULABLY INCAPABILITY INCAUTIOUSLY INCHOATIVELY
INCIDENTALLY INCLUSIONARY INCOMMUTABLY INCOMPARABLY INCOMPATIBLY
INCOMPLIANCY INCOMPUTABLY INCONSOLABLY INCONSTANTLY INCONSUMABLY
INCREASINGLY INCURABILITY INDECLINABLY INDELICATELY INDICATIVELY
INEFFACEABLY INELASTICITY INERADICABLY INEXPLICABLY INEXTRICABLY
INJUDICIALLY INSOUCIANTLY INTERFACULTY INTERLACEDLY INTERLOCALLY
IRASCIBILITY ISOCHRONALLY ISOTONICALLY ISOTOPICALLY ITHYPHALLICS
JURISTICALLY KARYOLOGICAL KARYOPLASMIC KARYOTYPICAL LACERABILITY
LACHRYMARIES LACHRYMATION LACHRYMOSITY LAMPROPHYRIC LARYNGOLOGIC
LASCIVIOUSLY LEACHABILITY LENTICULARLY LEXICOGRAPHY LITURGICALLY
LOCATIONALLY LOGISTICALLY LOQUACIOUSLY LYCANTHROPIC LYMPHANGITIC
MAENADICALLY MAGNETICALLY MAGNIFICALLY MAJESTICALLY MARTYROLOGIC
MATRILOCALLY MECAMYLAMINE MECHANICALLY MELANCHOLILY MENDACIOUSLY
MEPHITICALLY MERCURIALITY MERISTICALLY MESMERICALLY METALLICALLY
METAPHYSICAL METEORICALLY METHODICALLY MICROANALYST MICROCEPHALY
MICROCRYSTAL MICROTONALLY MIRACULOUSLY MNEMONICALLY MOLECULARITY
MONASTICALLY MONISTICALLY MONOCLINALLY MONOSYLLABIC MORBIFICALLY
MORDACIOUSLY MULTIVALENCY MUNICIPALITY MYELOBLASTIC MYOGRAPHICAL
MYSTAGOGICAL MYSTICALNESS MYTHOLOGICAL NARCOTICALLY NEOLOGICALLY
NEOTERICALLY NEUROTICALLY NEUROTYPICAL NOCTURNALITY NOEMATICALLY
NONANALYTICS NONLOGICALLY NONPHYSICALS NONSYLLABICS OCCASIONALLY
OCCIDENTALLY OCTOSYLLABIC OLEANDOMYCIN OPERATICALLY ORATORICALLY
ORBICULARITY ORGASMICALLY ORGASTICALLY OROGENICALLY OROLOGICALLY
OVERCLASSIFY OXYCEPHALIES PANICULATELY PANOPTICALLY PARANOICALLY
PARISYLLABIC PAROCHIALITY PARTICULARLY PATHETICALLY PATRILOCALLY
PEDANTICALLY PERIODICALLY PHAGOCYTICAL PHENOTYPICAL PHONEMICALLY
PHONETICALLY PHONOTYPICAL PHYCOLOGICAL PHYLACTERIES PHYLETICALLY
PHYLLOTACTIC PHYSIATRICAL PHYSICALISMS PHYSICALISTS PHYSICALIZED
PHYSICALIZES PHYSICALNESS PHYTOLOGICAL PICAYUNISHLY PICTORICALLY
PINEALECTOMY PLASTOCYANIN PLATONICALLY PLEBISCITARY POLICYMAKERS
POLYCYTHEMIA POLYSYLLABIC POLYSYNAPTIC PONTIFICALLY PRACTICALITY
PRECARIOUSLY PRELATICALLY PREMEDICALLY PRINCIPALITY PROCTORIALLY
PROLIFICALLY PROPHYLACTIC PROSODICALLY PROSTACYCLIN PROTOTYPICAL
PROVINCIALLY PSYCHEDELIAS PSYCHODELIAS PSYCHOSOCIAL PUGNACIOUSLY
PURISTICALLY PYELOGRAPHIC PYROCHEMICAL PYROCLASTICS PYROMANIACAL
PYROMETRICAL QUASICRYSTAL QUIXOTICALLY QUIZZICALITY RABBINICALLY
RADIOECOLOGY RADIOLUCENCY RECIPROCALLY RECOGNISABLY RECOGNIZABLY
RECONCILABLY RECREATIVELY REFRACTIVELY REFRACTORILY RETICULATELY
RETRACTILITY RETRACTIVELY REVOCABILITY RHETORICALLY RHYTHMICALLY
ROMANTICALLY SACCADICALLY SACCHARINELY SADISTICALLY SALICYLAMIDE
SALICYLATING SALVIFICALLY SANCTIFIEDLY SARDONICALLY SCAPULIMANCY
SCARIFYINGLY SCATTERINGLY SCRAMBLINGLY SCRATCHINGLY SCRIPTURALLY
SCRUTABILITY SEMANTICALLY SEMIMYSTICAL SEMIOTICALLY SEPTICIDALLY
SEQUACIOUSLY SERAPHICALLY SHOCKABILITY SIMONIACALLY SIMPLICIALLY
SPAGYRICALLY SPASMOLYTICS SPECIFICALLY SPHERICALITY SPORADICALLY
STICKABILITY STYLOGRAPHIC SUBGLACIALLY SUBSONICALLY SUBSPECIALTY
SUPERCILIARY SUPPLICATORY SUPRACILIARY SYLLABICALLY SYLLABICATED
SYLLABICATES SYMBOLICALLY SYMBOLOGICAL SYNAPTICALLY SYNCHRONICAL
SYNDACTYLIES SYNDACTYLISM SYNDETICALLY SYNDICALISMS SYNDICALISTS
SYNECTICALLY SYNERGICALLY SYNOPTICALLY SYNTONICALLY SYSTEMATICAL
SYSTEMICALLY TEACHABILITY TECHNICALITY TECTONICALLY TELERGICALLY
TENDENCIALLY TERRIFICALLY TETRACYCLINE THALAMICALLY THALLOPHYTIC
THEATRICALLY THEISTICALLY THEMATICALLY THEURGICALLY THORACICALLY
TINCTORIALLY TRACEABILITY TRACKLAYINGS TRACTABILITY TRANSILIENCY
TRICHOGYNIAL TRIDACTYLOUS TRIGLYPHICAL TROCHAICALLY TROCHOIDALLY
TRYPANOCIDAL TYPICALITIES TYRANNICALLY TYRANNICIDAL UNANALYTICAL
UNCHANGINGLY UNCHARITABLY UNCHARMINGLY UNCRITICALLY UNEROTICALLY
UNGRACIOUSLY UNHEROICALLY UNHYSTERICAL UNICAMERALLY UNIRONICALLY
UNNOTICEABLY UNOFFICIALLY UNPOETICALLY UNRHYTHMICAL VERIDICALITY
VERMICULARLY VESICULARITY VINYLCYANIDE VOCATIONALLY VOLCANICALLY
WHIMSICALITY ZOOLOGICALLY ZOOTOMICALLY ZYGODACTYLIC