unbars nubars ubnars bunars nbuars bnuars unabrs nuabrs uanbrs aunbrs naubrs anubrs ubanrs buanrs uabnrs aubnrs baunrs abunrs nbaurs bnaurs naburs anburs banurs abnurs unbras nubras ubnras bunras nburas bnuras unrbas nurbas urnbas runbas nrubas rnubas ubrnas burnas urbnas rubnas brunas rbunas nbruas bnruas nrbuas rnbuas brnuas rbnuas unarbs nuarbs uanrbs aunrbs naurbs anurbs unrabs nurabs urnabs runabs nruabs rnuabs uarnbs aurnbs uranbs ruanbs arunbs raunbs narubs anrubs nraubs rnaubs arnubs ranubs ubarns buarns uabrns aubrns baurns aburns ubrans burans urbans rubans bruans rbuans uarbns aurbns urabns ruabns arubns raubns baruns abruns brauns rbauns arbuns rabuns nbarus bnarus nabrus anbrus banrus abnrus nbraus bnraus nrbaus rnbaus brnaus rbnaus narbus anrbus nrabus rnabus arnbus ranbus barnus abrnus branus rbanus arbnus rabnus unbasr nubasr ubnasr bunasr nbuasr bnuasr unabsr nuabsr uanbsr aunbsr naubsr anubsr ubansr buansr uabnsr aubnsr baunsr abunsr nbausr bnausr nabusr anbusr banusr abnusr unbsar nubsar ubnsar bunsar nbusar bnusar unsbar nusbar usnbar sunbar nsubar snubar ubsnar busnar usbnar subnar bsunar sbunar nbsuar bnsuar nsbuar snbuar bsnuar sbnuar unasbr nuasbr uansbr aunsbr nausbr anusbr unsabr nusabr usnabr sunabr nsuabr snuabr uasnbr ausnbr usanbr suanbr asunbr saunbr nasubr ansubr nsaubr snaubr asnubr sanubr ubasnr buasnr uabsnr aubsnr bausnr abusnr ubsanr busanr usbanr subanr bsuanr sbuanr uasbnr ausbnr usabnr suabnr asubnr saubnr basunr absunr bsaunr sbaunr asbunr sabunr nbasur bnasur nabsur anbsur bansur abnsur nbsaur bnsaur nsbaur snbaur bsnaur sbnaur nasbur ansbur nsabur snabur asnbur sanbur basnur absnur bsanur sbanur asbnur sabnur unbrsa nubrsa ubnrsa bunrsa nbursa bnursa unrbsa nurbsa urnbsa runbsa nrubsa rnubsa ubrnsa burnsa urbnsa rubnsa brunsa rbunsa nbrusa bnrusa nrbusa rnbusa brnusa rbnusa unbsra nubsra ubnsra bunsra nbusra bnusra unsbra nusbra usnbra sunbra nsubra snubra ubsnra busnra usbnra subnra bsunra sbunra nbsura bnsura nsbura snbura bsnura sbnura unrsba nursba urnsba runsba nrusba rnusba unsrba nusrba usnrba sunrba nsurba snurba ursnba rusnba usrnba surnba rsunba srunba nrsuba rnsuba nsruba snruba rsnuba srnuba ubrsna bursna urbsna rubsna brusna rbusna ubsrna busrna usbrna subrna bsurna sburna ursbna rusbna usrbna surbna rsubna srubna brsuna rbsuna bsruna sbruna rsbuna srbuna nbrsua bnrsua nrbsua rnbsua brnsua rbnsua nbsrua bnsrua nsbrua snbrua bsnrua sbnrua nrsbua rnsbua nsrbua snrbua rsnbua srnbua brsnua rbsnua bsrnua sbrnua rsbnua srbnua unarsb nuarsb uanrsb aunrsb naursb anursb unrasb nurasb urnasb runasb nruasb rnuasb uarnsb aurnsb uransb ruansb arunsb raunsb narusb anrusb nrausb rnausb arnusb ranusb unasrb nuasrb uansrb aunsrb nausrb anusrb unsarb nusarb usnarb sunarb nsuarb snuarb uasnrb ausnrb usanrb suanrb asunrb saunrb nasurb ansurb nsaurb snaurb asnurb sanurb unrsab nursab urnsab runsab nrusab rnusab unsrab nusrab usnrab sunrab nsurab snurab ursnab rusnab usrnab surnab rsunab srunab nrsuab rnsuab nsruab snruab rsnuab srnuab uarsnb aursnb urasnb ruasnb arusnb rausnb uasrnb ausrnb usarnb suarnb asurnb saurnb ursanb rusanb usranb suranb rsuanb sruanb arsunb rasunb asrunb sarunb rsaunb sraunb narsub anrsub nrasub rnasub arnsub ransub nasrub ansrub nsarub snarub asnrub sanrub nrsaub rnsaub nsraub snraub rsnaub srnaub arsnub rasnub asrnub sarnub rsanub sranub ubarsn buarsn uabrsn aubrsn baursn abursn ubrasn burasn urbasn rubasn bruasn rbuasn uarbsn aurbsn urabsn ruabsn arubsn raubsn barusn abrusn brausn rbausn arbusn rabusn ubasrn buasrn uabsrn aubsrn bausrn abusrn ubsarn busarn usbarn subarn bsuarn sbuarn uasbrn ausbrn usabrn suabrn asubrn saubrn basurn absurn bsaurn sbaurn asburn saburn ubrsan bursan urbsan rubsan brusan rbusan ubsran busran usbran subran bsuran sburan ursban rusban usrban surban rsuban sruban brsuan rbsuan bsruan sbruan rsbuan srbuan uarsbn aursbn urasbn ruasbn arusbn rausbn uasrbn ausrbn usarbn suarbn asurbn saurbn ursabn rusabn usrabn surabn rsuabn sruabn arsubn rasubn asrubn sarubn rsaubn sraubn barsun abrsun brasun rbasun arbsun rabsun basrun absrun bsarun sbarun asbrun sabrun brsaun rbsaun bsraun sbraun rsbaun srbaun arsbun rasbun asrbun sarbun rsabun srabun nbarsu bnarsu nabrsu anbrsu banrsu abnrsu nbrasu bnrasu nrbasu rnbasu brnasu rbnasu narbsu anrbsu nrabsu rnabsu arnbsu ranbsu barnsu abrnsu bransu rbansu arbnsu rabnsu nbasru bnasru nabsru anbsru bansru abnsru nbsaru bnsaru nsbaru snbaru bsnaru sbnaru nasbru ansbru nsabru snabru asnbru sanbru basnru absnru bsanru sbanru asbnru sabnru nbrsau bnrsau nrbsau rnbsau brnsau rbnsau nbsrau bnsrau nsbrau snbrau bsnrau sbnrau nrsbau rnsbau nsrbau snrbau rsnbau srnbau brsnau rbsnau bsrnau sbrnau rsbnau srbnau narsbu anrsbu nrasbu rnasbu arnsbu ransbu nasrbu ansrbu nsarbu snarbu asnrbu sanrbu nrsabu rnsabu nsrabu snrabu rsnabu srnabu arsnbu rasnbu asrnbu sarnbu rsanbu sranbu barsnu abrsnu brasnu rbasnu arbsnu rabsnu basrnu absrnu bsarnu sbarnu asbrnu sabrnu brsanu rbsanu bsranu sbranu rsbanu srbanu arsbnu rasbnu asrbnu sarbnu rsabnu srabnu
Note: these 'words' (valid or invalid) are all the permutations of the word unbars. These words are obtained by scrambling the letters in unbars.