There are 662 ten-letter words containing A, 2C and S, https://www.bestwordlist.com/c/a/4/10letterwordswithaccs.htm
ACALCULIAS ACANACEOUS ACARICIDES ACCEDENCES ACCENSIONS ACCENTLESS
ACCEPTANTS ACCESSIBLE ACCESSIBLY ACCESSIONS ACCESSORII ACCIDENCES
ACCIPITERS ACCLAIMERS ACCLIMATES ACCOASTING ACCOMPLISH ACCORDIONS
ACCOSTABLE ACCOURAGES ACCRESCENT ACCRETIONS ACCURACIES ACCURSEDLY
ACCUSATION ACCUSATIVE ACCUSATORY ACCUSEMENT ACCUSINGLY ACCUSTOMED
ACERACEOUS ACESCENCES ACICLOVIRS ACINACEOUS ACOUSTICAL ACQUIESCED
ACQUIESCES ACRITARCHS ACROBATICS ACROSTICAL ACTIVISTIC ACYCLOVIRS
ADJACENCES ADVOCACIES AIRCOACHES ALBESCENCE ALCOHOLICS ANACLASTIC
ANACOUSTIC ANACRUSTIC ANORECTICS ARCCOSINES ARCHAICISM ARCHAISTIC
ARCHICARPS ARCHITECTS ARCSECONDS ARRACACHAS ASARABACCA ASCENDANCE
ASCENDANCY ASCENDENCE ASCENDENCY ASCETICISM ASCOCARPIC ASCOMYCETE
ASCOSPORIC ASTROCYTIC ASYNTACTIC ATARACTICS AURISCOPIC AUTOCYCLES
AUTOSCOPIC BABYCCINOS BACCHANALS BACCHANTES BACHARACHS BACKACTERS
BACKBLOCKS BACKCHECKS BACKCLOTHS BACKCOURTS BACKPIECES BACKSPACED
BACKSPACER BACKSPACES BACKSTITCH BACKTRACKS BAROSCOPIC BEACHCOMBS
BECCACCIAS BECCAFICOS BIOCLASTIC BLACKBUCKS BLACKCOCKS BLACKFACES
BLACKJACKS BRECCIATES BRICABRACS BRICKCLAYS BUCCANEERS BUCCANIERS
CABALISTIC CABLECASTS CACAFUEGOS CACHAEMIAS CACHOLONGS CACIQUISMS
CACODEMONS CACODOXIES CACOGENICS CACOLOGIES CACOMISTLE CACOMIXLES
CACONYMIES CACOTOPIAS CACTACEOUS CACUMINALS CACUMINOUS CADUCITIES
CAECILIANS CAECITISES CAILLEACHS CAILLIACHS CALAMANCOS CALAVANCES
CALCAREOUS CALCICOLES CALCIFUGES CALCIMINES CALCINOSES CALCINOSIS
CALCSINTER CALCULATES CALCULUSES CALESCENCE CALIMOCHOS CAMANACHDS
CAMCORDERS CAMELBACKS CAMIKNICKS CAMPCRAFTS CANCELBOTS CANCELEERS
CANCELIERS CANCELLERS CANCELLOUS CANCERATES CANCRIZANS CANDESCENT
CANESCENCE CANONICALS CANONISTIC CANVASBACK CAPACITIES CAPACITORS
CAPICOLLAS CAPICOLLOS CAPOCCHIAS CAPRICCIOS CAPRICIOUS CAPSAICINS
CARACOLERS CARAVANCES CARBACHOLS CARBUNCLES CARCASSING CARCINOIDS
CARCINOMAS CARCINOSES CARCINOSIS CARDCASTLE CARJACKERS CARPACCIOS
CARRITCHES CARRYBACKS CARTOUCHES CARVACROLS CASCADURAS CASCARILLA
CASEVACING CATACLASES CATACLASIS CATACLASMS CATACLYSMS CATATONICS
CATCALLERS CATCHCRIES CATCHFLIES CATCHINESS CATCHLINES CATCHMENTS
CATCHPOLES CATCHPOLLS CATCHWEEDS CATCHWORDS CATECHESES CATECHESIS
CATECHISED CATECHISER CATECHISES CATECHISMS CATECHISTS CATECHIZES
CATFACINGS CATHARTICS CATHOLICOS CATOPTRICS CAUCHEMARS CAUCUSSING
CAULESCENT CAULICULUS CAUSTICITY CAVALCADES CELIBACIES CERAMICIST
CERCARIANS CESAREVICH CESAREWICH CHACONINES CHAIRBACKS CHALCOGENS
CHALKFACES CHANCELESS CHANCERIES CHANCINESS CHANCROIDS CHAPSTICKS
CHARABANCS CHARACTERS CHAVTASTIC CHAWBACONS CHEAPJACKS CHECHAKOES
CHECHAQUOS CHECKMARKS CHECKMATES CHECKRAILS CHEECHAKOS CHEESECAKE
CHEVISANCE CHIACKINGS CHIASMATIC CHICALOTES CHICANINGS CHICKADEES
CHICKAREES CHILDCARES CHILIARCHS CHILIASTIC CHINCAPINS CHIPOCHIAS
CHLORACNES CHOCOLATES CHROMATICS CHURCHWAYS CHYLACEOUS CICATRICES
CICATRISED CICATRISER CICATRISES CICATRIXES CICATRIZES CICLATOUNS
CIRCASSIAN CIRCENSIAL CIRCENSIAN CIRCULATES CISTACEOUS CITYSCAPES
CLACKBOXES CLADISTICS CLAMANCIES CLASSICALS CLASSICISE CLASSICISM
CLASSICIST CLASSICIZE CLAVICORNS CLEANTECHS CLEARANCES CLEARCOLES
CLERICATES CLERUCHIAS CLICKBAITS CLICKWRAPS CLINICIANS CLOCKFACES
CLOGDANCES CLOUDSCAPE COACHLINES COACHLOADS COACHROOFS COACHWHIPS
COACHWOODS COACHWORKS COAGENCIES COALESCENT COALESCING COARCTATES
COCAINISED COCAINISES COCAINISMS COCAINISTS COCAINIZES COCAPTAINS
COCATALYST COCCIDIANS COCHINEALS COCHLEARES COCKATEELS COCKATIELS
COCKSWAINS COCKTEASER COCREATORS COCURATORS COECILIANS COENOSARCS
COFINANCES COGNISANCE COLCANNONS COLCOTHARS COLLOCATES COLORCASTS
COLOURCAST COMPACTERS COMPACTEST COMPACTORS CONACREISM CONCEALERS
CONCLAVISM CONCLAVIST CONCORDATS CONCREATES CONFISCATE CONNASCENT
CONSECRATE CONSECTARY CONSOCIATE CONSONANCE CONSONANCY CONSPIRACY
CONTACTEES CONTACTORS CONVALESCE CONVOCATES COOKSHACKS CORIACEOUS
CORNACEOUS CORNCRAKES CORNSTARCH CORUSCATED CORUSCATES COSMETICAL
COSMICALLY COSMOCRATS COSMORAMIC COULIBIACS COUNTBACKS COVALENCES
COWARDICES CRABSTICKS CRACKBACKS CRACKDOWNS CRACKHEADS CRACKLIEST
CRACKLINGS CRANACHANS CRANKCASES CRANREUCHS CREMOCARPS CRETACEOUS
CROCOSMIAS CROOKBACKS CROSSCLAIM CROSSHATCH CROSSJACKS CROSSMATCH
CROSSPATCH CRUSTACEAN CRYOCABLES CRYOSTATIC CUMBRANCES CUNCTATORS
CURVACEOUS CURVACIOUS CYBERCAFES CYBERCASTS CYBERSPACE CYCADEOIDS
CYCLAMATES CYCLEPATHS CYCLORAMAS CYCLOSPORA CYSTOCARPS CYTOSTATIC
DANCECORES DECACHORDS DECADENCES DECASTICHS DECHEANCES DECKCHAIRS
DELICACIES DESICCANTS DESICCATED DESICCATES DESICCATOR DIACAUSTIC
DIACOUSTIC DIACRITICS DIALECTICS DICACITIES DICACODYLS DIDASCALIC
DISACCORDS DOCIMASTIC DYSPRACTIC ECCLESIAST ECHINACEAS EFFICACIES
ENCAUSTICS ENCROACHES EPICALYCES EPISCOPACY ERICACEOUS ESCABECHES
ESCHAROTIC EXSICCANTS EXSICCATED EXSICCATES EXSICCATOR FACECLOTHS
FASCICULAR FASCICULES FASCICULUS FATISCENCE FLACCIDEST GALACTICOS
GEOCACHERS GIGACYCLES GRASSCYCLE HATCHBACKS HEATHCOCKS HUCKABACKS
HUNCHBACKS ICONOCLASM ICONOCLAST ICTERICALS INCANDESCE INCESSANCY
INCULCATES ISOCALORIC ISOCHASMIC ISOCRACIES JACKSCREWS JUNCACEOUS
KNOCKBACKS LACCOLITES LACCOLITHS LACONICISM LACTESCENT LACTOSCOPE
LANCEJACKS LATESCENCE LOCALISTIC MACARONICS MACCARONIS MACCHIATOS
MACROCODES MACROCOSMS MACROCYSTS MACROCYTES MACROSCALE MANDIOCCAS
MARCESCENT MATCHLOCKS MATCHSTICK MEGACYCLES MEGASCOPIC MESOCRATIC
MICROCARDS MICROSCALE MISCHANCED MISCHANCES MISCREANCE MISCREANCY
MISOCAPNIC MOCCASINED MUCKAMUCKS MUMCHANCES MUSCARINIC NAMECHECKS
NASCENCIES NEOCLASSIC NOCTILUCAS NONASCETIC NOTCHBACKS OCCASIONAL
OCCASIONED OCCASIONER OCCIPITALS OCCUPANCES OCHLOCRATS OCHRACEOUS
OCTACHORDS OCTARCHIES OCTASTICHS ORICALCHES OSCITANCES OUTCATCHES
OUTCOACHES PACIFICISM PACIFICIST PACIFISTIC PACKCLOTHS PASTICCIOS
PATCHOCKES PEACOCKISH PECCANCIES PHYCOCYANS PICCADILLS PICKABACKS
PICKAPACKS PLACEKICKS PRACTICALS PRACTICERS PRACTICUMS PREACCUSED
PREACCUSES PRECANCELS PRECANCERS PRECOCIALS PROCACIOUS RACCAHOUTS
RACECOURSE RACETRACKS RADICCHIOS RAINCHECKS REACCLAIMS REACCUSING
REACCUSTOM REACTANCES RECALESCED RECALESCES RECOMPACTS RECONTACTS
RECREANCES RECUSANCES RECYCLATES RENASCENCE RICERCARES RICERCATAS
SACCHARASE SACCHARATE SACCHARIDE SACCHARIFY SACCHARINE SACCHARINS
SACCHARISE SACCHARIZE SACCHAROID SACCHAROSE SACCHARUMS SACCULATED
SACKCLOTHS SACRIFICED SACRIFICER SACRIFICES SACROILIAC SACROSANCT
SALTCHUCKS SANDCRACKS SARCOCARPS SARCOCOLLA SCALPELLIC SCAPEGRACE
SCARAMOUCH SCARCEMENT SCARCENESS SCARCITIES SCARECROWS SCATOLOGIC
SCAZONTICS SCENICALLY SCHATCHENS SCHECHITAH SCHECHITAS SCHEMATICS
SCHISMATIC SCHIZOCARP SCHOLARCHS SCHOLASTIC SCINTISCAN SCIOMANCER
SCIOMANTIC SCORECARDS SCOUTCRAFT SCRAICHING SCRANCHING SCRATCHERS
SCRATCHIER SCRATCHIES SCRATCHILY SCRATCHING SCRAUCHING SCREENCAST
SDRUCCIOLA SECURANCES SECUROCRAT SEECATCHES SEECATCHIE SICCATIVES
SLAVOCRACY SNOBOCRACY SNOCOACHES SPACECRAFT SPATCHCOCK SPECIFICAL
SPECTACLED SPECTACLES SPLANCHNIC SPYCATCHER STAGECOACH STIACCIATO
STICCADOES STICCATOES STOCCADOES STOCHASTIC STOMACHICS STRACCHINI
STRACCHINO SUBARCTICS SUBCOMPACT SUBJACENCY SUBOCEANIC SUCCEDANEA
SUCCINATES SUCCORABLE SUCCURSALE SUCCURSALS SUNCATCHER SWITCHBACK
SYCOPHANCY SYNCLASTIC SYNTACTICS TABESCENCE TACAMAHACS TACMAHACKS
TACTICIANS TECHNICALS TOCCATINAS TOUCHBACKS TRACTRICES UNCOALESCE
VACCINATES VACCINIUMS VISCACHERA WATCHCASES WATCHCRIES WHIPCRACKS
WISECRACKS ZYGOCACTUS