drears rdears derars edrars redars erdars draers rdaers darers adrers raders arders dearrs edarrs daerrs aderrs eadrrs aedrrs readrs eradrs raedrs aredrs eardrs aerdrs dreras rderas derras edrras redras erdras drreas rdreas drreas rdreas rrdeas rrdeas derras edrras dreras rderas erdras redras rerdas errdas rredas rredas errdas rerdas drares rdares darres adrres radres ardres drraes rdraes drraes rdraes rrdaes rrdaes darres adrres drares rdares ardres radres rardes arrdes rrades rrades arrdes rardes dearrs edarrs daerrs aderrs eadrrs aedrrs derars edrars drears rdears erdars redars darers adrers draers rdaers arders raders eardrs aerdrs eradrs readrs aredrs raedrs reards erards raerds arerds earrds aerrds rerads errads rreads rreads errads rerads rareds arreds rraeds rraeds arreds rareds earrds aerrds erards reards arerds raerds dreasr rdeasr derasr edrasr redasr erdasr draesr rdaesr daresr adresr radesr ardesr dearsr edarsr daersr adersr eadrsr aedrsr readsr eradsr raedsr aredsr eardsr aerdsr dresar rdesar dersar edrsar redsar erdsar drsear rdsear dsrear sdrear rsdear srdear desrar edsrar dserar sderar esdrar sedrar resdar ersdar rsedar sredar esrdar serdar draser rdaser darser adrser radser ardser drsaer rdsaer dsraer sdraer rsdaer srdaer dasrer adsrer dsarer sdarer asdrer sadrer rasder arsder rsader srader asrder sarder deasrr edasrr daesrr adesrr eadsrr aedsrr desarr edsarr dsearr sdearr esdarr sedarr daserr adserr dsaerr sdaerr asderr saderr easdrr aesdrr esadrr seadrr asedrr saedrr reasdr erasdr raesdr aresdr earsdr aersdr resadr ersadr rseadr sreadr esradr seradr rasedr arsedr rsaedr sraedr asredr saredr easrdr aesrdr esardr seardr aserdr saerdr drersa rdersa derrsa edrrsa redrsa erdrsa drresa rdresa drresa rdresa rrdesa rrdesa derrsa edrrsa drersa rdersa erdrsa redrsa rerdsa errdsa rredsa rredsa errdsa rerdsa dresra rdesra dersra edrsra redsra erdsra drsera rdsera dsrera sdrera rsdera srdera desrra edsrra dserra sderra esdrra sedrra resdra ersdra rsedra sredra esrdra serdra drrsea rdrsea drrsea rdrsea rrdsea rrdsea drsrea rdsrea dsrrea sdrrea rsdrea srdrea drsrea rdsrea dsrrea sdrrea rsdrea srdrea rrsdea rrsdea rsrdea srrdea rsrdea srrdea dersra edrsra dresra rdesra erdsra redsra desrra edsrra dserra sderra esdrra sedrra drsera rdsera dsrera sdrera rsdera srdera ersdra resdra esrdra serdra rsedra sredra rersda errsda rresda rresda errsda rersda resrda ersrda rserda srerda esrrda serrda rrseda rrseda rsreda srreda rsreda srreda ersrda resrda esrrda serrda rserda srerda drarse rdarse darrse adrrse radrse ardrse drrase rdrase drrase rdrase rrdase rrdase darrse adrrse drarse rdarse ardrse radrse rardse arrdse rradse rradse arrdse rardse drasre rdasre darsre adrsre radsre ardsre drsare rdsare dsrare sdrare rsdare srdare dasrre adsrre dsarre sdarre asdrre sadrre rasdre arsdre rsadre sradre asrdre sardre drrsae rdrsae drrsae rdrsae rrdsae rrdsae drsrae rdsrae dsrrae sdrrae rsdrae srdrae drsrae rdsrae dsrrae sdrrae rsdrae srdrae rrsdae rrsdae rsrdae srrdae rsrdae srrdae darsre adrsre drasre rdasre ardsre radsre dasrre adsrre dsarre sdarre asdrre sadrre drsare rdsare dsrare sdrare rsdare srdare arsdre rasdre asrdre sardre rsadre sradre rarsde arrsde rrasde rrasde arrsde rarsde rasrde arsrde rsarde srarde asrrde sarrde rrsade rrsade rsrade srrade rsrade srrade arsrde rasrde asrrde sarrde rsarde srarde dearsr edarsr daersr adersr eadrsr aedrsr derasr edrasr dreasr rdeasr erdasr redasr daresr adresr draesr rdaesr ardesr radesr eardsr aerdsr eradsr readsr aredsr raedsr deasrr edasrr daesrr adesrr eadsrr aedsrr desarr edsarr dsearr sdearr esdarr sedarr daserr adserr dsaerr sdaerr asderr saderr easdrr aesdrr esadrr seadrr asedrr saedrr dersar edrsar dresar rdesar erdsar redsar desrar edsrar dserar sderar esdrar sedrar drsear rdsear dsrear sdrear rsdear srdear ersdar resdar esrdar serdar rsedar sredar darser adrser draser rdaser ardser radser dasrer adsrer dsarer sdarer asdrer sadrer drsaer rdsaer dsraer sdraer rsdaer srdaer arsder rasder asrder sarder rsader srader earsdr aersdr erasdr reasdr aresdr raesdr easrdr aesrdr esardr seardr aserdr saerdr ersadr resadr esradr seradr rseadr sreadr arsedr rasedr asredr saredr rsaedr sraedr rearsd erarsd raersd arersd earrsd aerrsd rerasd errasd rreasd rreasd errasd rerasd raresd arresd rraesd rraesd arresd raresd earrsd aerrsd erarsd rearsd arersd raersd reasrd erasrd raesrd aresrd earsrd aersrd resard ersard rseard sreard esrard serard raserd arserd rsaerd sraerd asrerd sarerd easrrd aesrrd esarrd searrd aserrd saerrd rersad errsad rresad rresad errsad rersad resrad ersrad rserad srerad esrrad serrad rrsead rrsead rsread srread rsread srread ersrad resrad esrrad serrad rserad srerad rarsed arrsed rrased rrased arrsed rarsed rasred arsred rsared srared asrred sarred rrsaed rrsaed rsraed srraed rsraed srraed arsred rasred asrred sarred rsared srared earsrd aersrd erasrd reasrd aresrd raesrd easrrd aesrrd esarrd searrd aserrd saerrd ersard resard esrard serard rseard sreard arserd raserd asrerd sarerd rsaerd sraerd
Note: these 'words' (valid or invalid) are all the permutations of the word drears. These words are obtained by scrambling the letters in drears.