There are 602 thirteen-letter words containing A, 2N and 2S, https://www.bestwordlist.com/c/a/5/13letterwordswithannss.htm ABSTENTIONISM ABSTENTIONIST ACCEPTINGNESS ADMINISTRANTS ADMONISHMENTS AMNIOCENTESES AMNIOCENTESIS AMUSINGNESSES ANALOGOUSNESS ANCHORPERSONS ANCIENTNESSES ANDROSPHINGES ANDROSPHINXES ANDROSTERONES ANESTHETISING ANGULARNESSES ANIMATENESSES ANNIVERSARIES ANOMALOUSNESS ANONYMOUSNESS ANTEPOSITIONS ANTIALIASINGS ANTIESTROGENS ANTIFEMINISMS ANTIFEMINISTS ANTIHUMANISMS ANTIHUMANISTS ANTINAUSEANTS ANTINOVELISTS ANTIQUENESSES ANTIRECESSION ANTISTROPHONS ANXIOUSNESSES APPEALINGNESS APPREHENSIONS ARSPHENAMINES ASCENSIONISTS ASSASSINATING ASSASSINATION ASSENTIVENESS ASTONISHINGLY ASTONISHMENTS ASTRINGENCIES ASTRONOMISING ASYNCHRONISMS ATTENTIVENESS BANALISATIONS BANCASSURANCE BANEFULNESSES BARNSTORMINGS BLANDISHMENTS BLUESNARFINGS BRAINLESSNESS BRAINSICKNESS BRAINWASHINGS BRANFULNESSES BRASSFOUNDING BRILLIANTNESS BRINKMANSHIPS BRINKSMANSHIP BUOYANTNESSES BUSINESSWOMAN CANALISATIONS CANISTERISING CANONISATIONS CENTRICALNESS CHANGEFULNESS CHONDROSTIANS CIRCASSIENNES CLEANLINESSES COGNATENESSES COLONISATIONS COMPANIONLESS COMPASSIONING COMPENSATIONS COMPLIANTNESS CONCAVENESSES CONCESSIONARY CONDENSATIONS CONFESSIONALS CONFESSIONARY CONFISCATIONS CONGENIALNESS CONGRESSIONAL CONGRESSWOMAN CONJUGATENESS CONNASCENCIES CONNATENESSES CONNUBIALISMS CONSECRATIONS CONSECTANEOUS CONSENTANEOUS CONSERVANCIES CONSERVATIONS CONSIDERANCES CONSIGNATIONS CONSOCIATIONS CONSPIRATIONS CONSTATATIONS CONSTIPATIONS CONSULTANCIES CONSULTATIONS CONSUMMATIONS CONTAGIONISTS CONTAINERISES CONTAINERLESS CONTESTATIONS CONTINUALNESS CONTRABASSOON CONVALESCENTS CONVERSANCIES CONVERSATIONS COUNTERSTAINS CROSSBANDINGS CUTINISATIONS CYNICALNESSES DANGEROUSNESS DARLINGNESSES DAUNTLESSNESS DECONGESTANTS DEFIANTNESSES DEGRADINGNESS DEIONISATIONS DEMANDINGNESS DEMONISATIONS DESALINATIONS DISANNULLINGS DISANNULMENTS DISCANDERINGS DISCIPLINANTS DISCRIMINANTS DISENCHANTERS DISGARNISHING DISINFECTANTS DISINFESTANTS DISINFLATIONS DISORGANISING DISPENSATIONS DISSEMINATING DISSEMINATION DISTANTNESSES DISTRAINMENTS DIVINISATIONS DRACONIANISMS DRINKABLENESS DUNNIEWASSALS DYNAMOGENESES DYNAMOGENESIS EARNESTNESSES EASYGOINGNESS EMBRACINGNESS ENCHANTRESSES ENCOMPASSMENT ENCRUSTATIONS ENDEARINGNESS ENDONUCLEASES ENDURABLENESS ENERGISATIONS ENFRANCHISERS ENGRAINEDNESS ENJOYABLENESS ENSWATHEMENTS ENTEROKINASES ENVISAGEMENTS ESSENTIALNESS ESTRANGEDNESS ESTRANGEMENTS ETERNALNESSES ETERNISATIONS EXPANSIONISMS EXPANSIONISTS EXPANSIVENESS EXSANGUINATES EXSANGUINEOUS FANATICALNESS FAWNINGNESSES FEMINISATIONS FENESTRATIONS FINABLENESSES FINALISATIONS FINANCIALISTS FINICALNESSES FLAUNTINESSES FORTUNATENESS FRANCISATIONS FRANGIBLENESS FRANKINCENSES FRANTICNESSES GAINFULNESSES GALLANTNESSES GANGSTERLANDS GENERALNESSES GERMANENESSES GLARINGNESSES GORMANDISINGS GRANDIOSENESS GRANDSTANDERS GRANTSMANSHIP GREENWASHINGS HALTINGNESSES HAPPENSTANCES HARDSTANDINGS HAUSSMANNISED HAUSSMANNISES HAUSSMANNIZED HAUSSMANNIZES HEATHENNESSES HISPANICISING HOMINISATIONS HONORABLENESS HUMANISATIONS HUNTSMANSHIPS HYDRASTININES HYPNOANALYSES HYPNOANALYSIS IDENTICALNESS IMAGINARINESS IMMUNISATIONS INABSTINENCES INANIMATENESS INAUDIBLENESS INCALESCENCES INCANDESCENTS INCAPABLENESS INCENDIARISMS INCESSANTNESS INCOGNISANCES INCONSONANCES INCONSTANCIES INCRASSATIONS INCRUSTATIONS INCUNABULISTS INCURABLENESS INDISPENSABLE INDISPENSABLY INEFFABLENESS INERRABLENESS INEXACTNESSES INFLATIONISMS INFLATIONISTS INGRAINEDNESS INHUMANNESSES INITIALNESSES INOBSERVANCES INOSCULATIONS INSALIVATIONS INSANITATIONS INSATIATENESS INSEMINATIONS INSENSATENESS INSPISSATIONS INSTALLATIONS INSTANTANEOUS INSTANTNESSES INSTAURATIONS INSTILLATIONS INSTRUMENTALS INSUBSTANTIAL INSUFFLATIONS INTERSTATIONS INTRANSIGENTS INTRANSITIVES INTRICATENESS INTROGRESSANT INVALIDNESSES INVIOLATENESS ISOPRENALINES KNAVISHNESSES LANGUIDNESSES LANGUISHMENTS LASTINGNESSES LATINISATIONS LEARNEDNESSES MADDENINGNESS MANNISHNESSES MANSPLAININGS MANSPREADINGS MASCULINENESS MASCULINISING MAUDLINNESSES MEANINGLESSLY MELANISATIONS MELANOGENESES MELANOGENESIS MENSTRUATIONS MERCENARINESS MINIMISATIONS MINISTRATIONS MISALIGNMENTS MISDEMEANANTS MISDIAGNOSING MISINFORMANTS MISSHAPENNESS MISUNDERSTAND MOMENTARINESS MONETISATIONS MOUNTAINSIDES MUNDANENESSES NARCOANALYSES NARCOANALYSIS NARCOHYPNOSES NARCOHYPNOSIS NASALISATIONS NASALIZATIONS NASOPHARYNGES NASOPHARYNXES NATIONALISERS NATURALNESSES NAUGHTINESSES NAVIGABLENESS NEBULISATIONS NECESSARINESS NECESSITARIAN NECESSITATING NECESSITATION NEFARIOUSNESS NEONOMIANISMS NEURASTHENIAS NEURASTHENICS NEUTRALNESSES NEWFANGLENESS NEWSMAGAZINES NIGGARDLINESS NOMADISATIONS NONADMISSIONS NONAESTHETICS NONAGGRESSION NONAGGRESSIVE NONASSOCIATED NONBROADCASTS NONCLASSIFIED NONCLASSROOMS NONCONSENSUAL NONESSENTIALS NONINSURANCES NONPASSERINES NONPHOSPHATES NONPHYSICIANS NONRANDOMNESS NONRESISTANCE NONRESISTANTS NONSECTARIANS NONSENSICALLY NONSINUSOIDAL NONSOCIALISTS NONSPECIALIST NONSYSTEMATIC NONUNIVERSALS NORMATIVENESS NOTABLENESSES NOTARISATIONS NOVELISATIONS OBSTINATENESS OFFHANDEDNESS ONOMASTICIANS OPSONISATIONS OPSONIZATIONS ORGANISATIONS ORGANOGENESES ORGANOGENESIS OUTPASSIONING PAGANISATIONS PAINFULNESSES PAINTERLINESS PALINGENESIAS PALINGENESIES PALINGENESIST PARASCENDINGS PARKINSONIANS PARKINSONISMS PAUNCHINESSES PENALISATIONS PERMANENTNESS PERSONALISING PHENARSAZINES PHONASTHENIAS PINHEADEDNESS PIQUANTNESSES PLAINTIVENESS PLASTINATIONS PLASTOCYANINS POLLYANNAISMS PRESENTATIONS PREVALENTNESS PRINCIPALNESS PRINTABLENESS PROFANENESSES PRUSSIANISING PRUSSIANIZING QUANTISATIONS RANCOROUSNESS RAUNCHINESSES REASSIGNMENTS RECOGNISANCES REINSTALMENTS REMONSTRANCES REPRESENTANTS RESPONDENTIAS RESUPINATIONS RETRANSFUSING REVEALINGNESS ROMANISATIONS SAINTLINESSES SALAMANDRIANS SALINISATIONS SALINIZATIONS SANCTIMONIOUS SANCTUARISING SANDBLASTINGS SANDPAINTINGS SANDPAPERINGS SANITARIANISM SANITATIONIST SANITISATIONS SANITIZATIONS SATANICALNESS SATANOPHANIES SATURNINITIES SCAVENGERINGS SCENARISATION SCINTILLISCAN SCINTISCANNER SCRAPEPENNIES SCRAWNINESSES SCRIMSHANKING SEARCHINGNESS SECONDARINESS SEDENTARINESS SEGMENTATIONS SEMICONSONANT SENARMONTITES SENSATIONALLY SENSATIONISMS SENSATIONISTS SENSATIONLESS SENSITISATION SENSITIZATION SENSORINEURAL SENSUALNESSES SEXAGENARIANS SIGNALISATION SIGNIFICANCES SINGULARISING SKRIMSHANKING SLOGANEERINGS SNAKISHNESSES SNAPSHOOTINGS SNOWBOARDINGS SOLEMNISATION SOLONISATIONS SOLONIZATIONS SOMNAMBULANTS SOMNIFACIENTS SPARINGNESSES SPINDLESHANKS SPLENISATIONS SPLENIZATIONS SPONTANEITIES SPONTANEOUSLY STAINLESSNESS STANDARDISING STATEMENTINGS STAUNCHNESSES STERNUTATIONS STONEWALLINGS STRANGENESSES STRANGLEMENTS STRAPHANGINGS STREAMLININGS STRONTIANITES STROPHANTHINS SUBALTERNANTS SUBLINEATIONS SUBTERRANEANS SUBURBANISING SULPHONATIONS SUPERANNUATES SUSTENTATIONS SYNTACTICIANS TECHNICALNESS TENABLENESSES TENACIOUSNESS TENTATIVENESS TETANISATIONS THANKLESSNESS THANKSGIVINGS THINKABLENESS THIOSINAMINES TRANSAMINASES TRANSCENDENTS TRANSDUCTANTS TRANSDUCTIONS TRANSFECTIONS TRANSFERENCES TRANSFORMINGS TRANSFUSIONAL TRANSGRESSING TRANSGRESSION TRANSHIPMENTS TRANSHIPPINGS TRANSHUMANCES TRANSIENTNESS TRANSILIENCES TRANSISTHMIAN TRANSITIONALS TRANSLUCENCES TRANSMIGRANTS TRANSMISSIONS TRANSMONTANES TRANSPARENCES TRANSPERSONAL TRANSPLANTERS TRANSPORTINGS TRANSPOSITION TRANSSHIPMENT TRANSSHIPPING TRANSUDATIONS TRANSUMPTIONS TRANSVERSIONS TUNABLENESSES TYRANNOSAURUS TYRANNOUSNESS UNADVISEDNESS UNAMIABLENESS UNANIMOUSNESS UNASHAMEDNESS UNAWARENESSES UNBIASSEDNESS UNCANNINESSES UNCEASINGNESS UNCERTAINNESS UNCLEANLINESS UNCLEANNESSES UNCLEARNESSES UNCONSECRATES UNCONSTRAINTS UNCREATEDNESS UNDAUNTEDNESS UNDERCLASSMAN UNDERCLASSMEN UNDERPASSIONS UNDERSEALINGS UNDERSTANDERS UNEARTHLINESS UNEATABLENESS UNESSENTIALLY UNFAILINGNESS UNGUARDEDNESS UNHANDINESSES UNHAPPINESSES UNHEALTHINESS UNIMPASSIONED UNIONISATIONS UNITARIANISMS UNIVERSALNESS UNLEARNEDNESS UNMANLINESSES UNMEANINGNESS UNMUSICALNESS UNNATURALISES UNNATURALNESS UNNECESSARILY UNOBSERVANCES UNREADINESSES UNSAINTLINESS UNSATURATIONS UNSAVOURINESS UNSENSATIONAL UNSENSUALISED UNSENSUALISES UNSENSUALIZED UNSENSUALIZES UNSHAPELINESS UNSHARPNESSES UNSPARINGNESS UNSTAIDNESSES UNSUBSTANTIAL UNSUSTAINABLE UNSUSTAINABLY UNTACTFULNESS UNTAINTEDNESS UNTAMABLENESS UNTAMEDNESSES UNTENABLENESS UNTRESPASSING UNTUNABLENESS UNUSUALNESSES UNWEARIEDNESS UNWOMANLINESS URBANISATIONS VAGRANTNESSES VALIANTNESSES VANQUISHMENTS VENERABLENESS VISIONARINESS VOLUNTARINESS WAINSCOTTINGS WASHINGTONIAS WITHDRAWNNESS WOMANLINESSES XENODIAGNOSES XENODIAGNOSIS