brutal rbutal burtal ubrtal rubtal urbtal brtual rbtual btrual tbrual rtbual trbual butral ubtral btural tbural utbral tubral rutbal urtbal rtubal trubal utrbal turbal bruatl rbuatl buratl ubratl rubatl urbatl brautl rbautl barutl abrutl rabutl arbutl buartl ubartl baurtl aburtl uabrtl aubrtl ruabtl urabtl raubtl arubtl uarbtl aurbtl brtaul rbtaul btraul tbraul rtbaul trbaul bratul rbatul bartul abrtul rabtul arbtul btarul tbarul batrul abtrul tabrul atbrul rtabul trabul ratbul artbul tarbul atrbul butarl ubtarl btuarl tbuarl utbarl tubarl buatrl ubatrl bautrl abutrl uabtrl aubtrl btaurl tbaurl baturl abturl taburl atburl utabrl tuabrl uatbrl autbrl taubrl atubrl rutabl urtabl rtuabl truabl utrabl turabl ruatbl uratbl rautbl arutbl uartbl aurtbl rtaubl traubl ratubl artubl tarubl atrubl utarbl tuarbl uatrbl autrbl taurbl aturbl brutla rbutla burtla ubrtla rubtla urbtla brtula rbtula btrula tbrula rtbula trbula butrla ubtrla bturla tburla utbrla tubrla rutbla urtbla rtubla trubla utrbla turbla brulta rbulta burlta ubrlta rublta urblta brluta rbluta blruta lbruta rlbuta lrbuta bulrta ublrta blurta lburta ulbrta lubrta rulbta urlbta rlubta lrubta ulrbta lurbta brtlua rbtlua btrlua tbrlua rtblua trblua brltua rbltua blrtua lbrtua rlbtua lrbtua btlrua tblrua bltrua lbtrua tlbrua ltbrua rtlbua trlbua rltbua lrtbua tlrbua ltrbua butlra ubtlra btulra tbulra utblra tublra bultra ubltra blutra lbutra ulbtra lubtra btlura tblura bltura lbtura tlbura ltbura utlbra tulbra ultbra lutbra tlubra ltubra rutlba urtlba rtulba trulba utrlba turlba rultba urltba rlutba lrutba ulrtba lurtba rtluba trluba rltuba lrtuba tlruba ltruba utlrba tulrba ultrba lutrba tlurba lturba brualt rbualt buralt ubralt rubalt urbalt brault rbault barult abrult rabult arbult buarlt ubarlt baurlt aburlt uabrlt aubrlt ruablt urablt raublt arublt uarblt aurblt brulat rbulat burlat ubrlat rublat urblat brluat rbluat blruat lbruat rlbuat lrbuat bulrat ublrat blurat lburat ulbrat lubrat rulbat urlbat rlubat lrubat ulrbat lurbat bralut rbalut barlut abrlut rablut arblut brlaut rblaut blraut lbraut rlbaut lrbaut balrut ablrut blarut lbarut albrut labrut ralbut arlbut rlabut lrabut alrbut larbut bualrt ubalrt baulrt abulrt uablrt aublrt bulart ublart bluart lbuart ulbart lubart balurt ablurt blaurt lbaurt alburt laburt ualbrt aulbrt ulabrt luabrt alubrt laubrt rualbt uralbt raulbt arulbt uarlbt aurlbt rulabt urlabt rluabt lruabt ulrabt lurabt ralubt arlubt rlaubt lraubt alrubt larubt ualrbt aulrbt ularbt luarbt alurbt laurbt brtalu rbtalu btralu tbralu rtbalu trbalu bratlu rbatlu bartlu abrtlu rabtlu arbtlu btarlu tbarlu batrlu abtrlu tabrlu atbrlu rtablu trablu ratblu artblu tarblu atrblu brtlau rbtlau btrlau tbrlau rtblau trblau brltau rbltau blrtau lbrtau rlbtau lrbtau btlrau tblrau bltrau lbtrau tlbrau ltbrau rtlbau trlbau rltbau lrtbau tlrbau ltrbau braltu rbaltu barltu abrltu rabltu arbltu brlatu rblatu blratu lbratu rlbatu lrbatu balrtu ablrtu blartu lbartu albrtu labrtu ralbtu arlbtu rlabtu lrabtu alrbtu larbtu btalru tbalru batlru abtlru tablru atblru btlaru tblaru bltaru lbtaru tlbaru ltbaru baltru abltru blatru lbatru albtru labtru talbru atlbru tlabru ltabru altbru latbru rtalbu tralbu ratlbu artlbu tarlbu atrlbu rtlabu trlabu rltabu lrtabu tlrabu ltrabu raltbu arltbu rlatbu lratbu alrtbu lartbu talrbu atlrbu tlarbu ltarbu altrbu latrbu butalr ubtalr btualr tbualr utbalr tubalr buatlr ubatlr bautlr abutlr uabtlr aubtlr btaulr tbaulr batulr abtulr tabulr atbulr utablr tuablr uatblr autblr taublr atublr butlar ubtlar btular tbular utblar tublar bultar ubltar blutar lbutar ulbtar lubtar btluar tbluar bltuar lbtuar tlbuar ltbuar utlbar tulbar ultbar lutbar tlubar ltubar bualtr ubaltr baultr abultr uabltr aubltr bulatr ublatr bluatr lbuatr ulbatr lubatr balutr ablutr blautr lbautr albutr labutr ualbtr aulbtr ulabtr luabtr alubtr laubtr btalur tbalur batlur abtlur tablur atblur btlaur tblaur bltaur lbtaur tlbaur ltbaur baltur abltur blatur lbatur albtur labtur talbur atlbur tlabur ltabur altbur latbur utalbr tualbr uatlbr autlbr taulbr atulbr utlabr tulabr ultabr lutabr tluabr ltuabr ualtbr aultbr ulatbr luatbr alutbr lautbr talubr atlubr tlaubr ltaubr altubr latubr rutalb urtalb rtualb trualb utralb turalb ruatlb uratlb rautlb arutlb uartlb aurtlb rtaulb traulb ratulb artulb tarulb atrulb utarlb tuarlb uatrlb autrlb taurlb aturlb rutlab urtlab rtulab trulab utrlab turlab rultab urltab rlutab lrutab ulrtab lurtab rtluab trluab rltuab lrtuab tlruab ltruab utlrab tulrab ultrab lutrab tlurab lturab rualtb uraltb raultb arultb uarltb aurltb rulatb urlatb rluatb lruatb ulratb luratb ralutb arlutb rlautb lrautb alrutb larutb ualrtb aulrtb ulartb luartb alurtb laurtb rtalub tralub ratlub artlub tarlub atrlub rtlaub trlaub rltaub lrtaub tlraub ltraub raltub arltub rlatub lratub alrtub lartub talrub atlrub tlarub ltarub altrub latrub utalrb tualrb uatlrb autlrb taulrb atulrb utlarb tularb ultarb lutarb tluarb ltuarb ualtrb aultrb ulatrb luatrb alutrb lautrb talurb atlurb tlaurb ltaurb alturb laturb
Note: these 'words' (valid or invalid) are all the permutations of the word brutal. These words are obtained by scrambling the letters in brutal.