instar nistar isntar sintar nsitar snitar intsar nitsar itnsar tinsar ntisar tnisar istnar sitnar itsnar tisnar stinar tsinar nstiar sntiar ntsiar tnsiar stniar tsniar insatr nisatr isnatr sinatr nsiatr sniatr inastr niastr ianstr ainstr naistr anistr isantr siantr iasntr aisntr saintr asintr nsaitr snaitr nasitr ansitr sanitr asnitr intasr nitasr itnasr tinasr ntiasr tniasr inatsr niatsr iantsr aintsr naitsr anitsr itansr tiansr iatnsr aitnsr tainsr atinsr ntaisr tnaisr natisr antisr tanisr atnisr istanr sitanr itsanr tisanr stianr tsianr isatnr siatnr iastnr aistnr saitnr asitnr itasnr tiasnr iatsnr aitsnr taisnr atisnr stainr tsainr satinr astinr tasinr atsinr nstair sntair ntsair tnsair stnair tsnair nsatir snatir nastir anstir santir asntir ntasir tnasir natsir antsir tansir atnsir stanir tsanir satnir astnir tasnir atsnir instra nistra isntra sintra nsitra snitra intsra nitsra itnsra tinsra ntisra tnisra istnra sitnra itsnra tisnra stinra tsinra nstira sntira ntsira tnsira stnira tsnira insrta nisrta isnrta sinrta nsirta snirta inrsta nirsta irnsta rinsta nrista rnista isrnta sirnta irsnta risnta srinta rsinta nsrita snrita nrsita rnsita srnita rsnita intrsa nitrsa itnrsa tinrsa ntirsa tnirsa inrtsa nirtsa irntsa rintsa nritsa rnitsa itrnsa tirnsa irtnsa ritnsa trinsa rtinsa ntrisa tnrisa nrtisa rntisa trnisa rtnisa istrna sitrna itsrna tisrna stirna tsirna isrtna sirtna irstna ristna sritna rsitna itrsna tirsna irtsna ritsna trisna rtisna strina tsrina srtina rstina trsina rtsina nstria sntria ntsria tnsria stnria tsnria nsrtia snrtia nrstia rnstia srntia rsntia ntrsia tnrsia nrtsia rntsia trnsia rtnsia strnia tsrnia srtnia rstnia trsnia rtsnia insart nisart isnart sinart nsiart sniart inasrt niasrt iansrt ainsrt naisrt anisrt isanrt sianrt iasnrt aisnrt sainrt asinrt nsairt snairt nasirt ansirt sanirt asnirt insrat nisrat isnrat sinrat nsirat snirat inrsat nirsat irnsat rinsat nrisat rnisat isrnat sirnat irsnat risnat srinat rsinat nsriat snriat nrsiat rnsiat srniat rsniat inarst niarst ianrst ainrst nairst anirst inrast nirast irnast rinast nriast rniast iarnst airnst iranst rianst arinst rainst narist anrist nraist rnaist arnist ranist isarnt siarnt iasrnt aisrnt sairnt asirnt isrant sirant irsant risant sriant rsiant iarsnt airsnt irasnt riasnt arisnt raisnt sarint asrint sraint rsaint arsint rasint nsarit snarit nasrit ansrit sanrit asnrit nsrait snrait nrsait rnsait srnait rsnait narsit anrsit nrasit rnasit arnsit ransit sarnit asrnit sranit rsanit arsnit rasnit intars nitars itnars tinars ntiars tniars inatrs niatrs iantrs aintrs naitrs anitrs itanrs tianrs iatnrs aitnrs tainrs atinrs ntairs tnairs natirs antirs tanirs atnirs intras nitras itnras tinras ntiras tniras inrtas nirtas irntas rintas nritas rnitas itrnas tirnas irtnas ritnas trinas rtinas ntrias tnrias nrtias rntias trnias rtnias inarts niarts ianrts ainrts nairts anirts inrats nirats irnats rinats nriats rniats iarnts airnts irants riants arints raints narits anrits nraits rnaits arnits ranits itarns tiarns iatrns aitrns tairns atirns itrans tirans irtans ritans trians rtians iartns airtns iratns riatns aritns raitns tarins atrins trains rtains artins ratins ntaris tnaris natris antris tanris atnris ntrais tnrais nrtais rntais trnais rtnais nartis anrtis nratis rnatis arntis rantis tarnis atrnis tranis rtanis artnis ratnis istarn sitarn itsarn tisarn stiarn tsiarn isatrn siatrn iastrn aistrn saitrn asitrn itasrn tiasrn iatsrn aitsrn taisrn atisrn stairn tsairn satirn astirn tasirn atsirn istran sitran itsran tisran stiran tsiran isrtan sirtan irstan ristan sritan rsitan itrsan tirsan irtsan ritsan trisan rtisan strian tsrian srtian rstian trsian rtsian isartn siartn iasrtn aisrtn sairtn asirtn isratn siratn irsatn risatn sriatn rsiatn iarstn airstn irastn riastn aristn raistn saritn asritn sraitn rsaitn arsitn rasitn itarsn tiarsn iatrsn aitrsn tairsn atirsn itrasn tirasn irtasn ritasn triasn rtiasn iartsn airtsn iratsn riatsn aritsn raitsn tarisn atrisn traisn rtaisn artisn ratisn starin tsarin satrin astrin tasrin atsrin strain tsrain srtain rstain trsain rtsain sartin asrtin sratin rsatin arstin rastin tarsin atrsin trasin rtasin artsin ratsin nstari sntari ntsari tnsari stnari tsnari nsatri snatri nastri anstri santri asntri ntasri tnasri natsri antsri tansri atnsri stanri tsanri satnri astnri tasnri atsnri nstrai sntrai ntsrai tnsrai stnrai tsnrai nsrtai snrtai nrstai rnstai srntai rsntai ntrsai tnrsai nrtsai rntsai trnsai rtnsai strnai tsrnai srtnai rstnai trsnai rtsnai nsarti snarti nasrti ansrti sanrti asnrti nsrati snrati nrsati rnsati srnati rsnati narsti anrsti nrasti rnasti arnsti ransti sarnti asrnti sranti rsanti arsnti rasnti ntarsi tnarsi natrsi antrsi tanrsi atnrsi ntrasi tnrasi nrtasi rntasi trnasi rtnasi nartsi anrtsi nratsi rnatsi arntsi rantsi tarnsi atrnsi transi rtansi artnsi ratnsi starni tsarni satrni astrni tasrni atsrni strani tsrani srtani rstani trsani rtsani sartni asrtni sratni rsatni arstni rastni tarsni atrsni trasni rtasni artsni ratsni
Note: these 'words' (valid or invalid) are all the permutations of the word instar. These words are obtained by scrambling the letters in instar.