shrewd hsrewd srhewd rshewd hrsewd rhsewd sherwd hserwd sehrwd eshrwd hesrwd ehsrwd srehwd rsehwd serhwd esrhwd reshwd ershwd hreswd rheswd herswd ehrswd rehswd erhswd shrwed hsrwed srhwed rshwed hrswed rhswed shwred hswred swhred wshred hwsred whsred srwhed rswhed swrhed wsrhed rwshed wrshed hrwsed rhwsed hwrsed whrsed rwhsed wrhsed shewrd hsewrd sehwrd eshwrd heswrd ehswrd shwerd hswerd swherd wsherd hwserd whserd sewhrd eswhrd swehrd wsehrd ewshrd weshrd hewsrd ehwsrd hwesrd whesrd ewhsrd wehsrd srewhd rsewhd serwhd esrwhd reswhd erswhd srwehd rswehd swrehd wsrehd rwsehd wrsehd sewrhd eswrhd swerhd wserhd ewsrhd wesrhd rewshd erwshd rweshd wreshd ewrshd wershd hrewsd rhewsd herwsd ehrwsd rehwsd erhwsd hrwesd rhwesd hwresd whresd rwhesd wrhesd hewrsd ehwrsd hwersd whersd ewhrsd wehrsd rewhsd erwhsd rwehsd wrehsd ewrhsd werhsd shredw hsredw srhedw rshedw hrsedw rhsedw sherdw hserdw sehrdw eshrdw hesrdw ehsrdw srehdw rsehdw serhdw esrhdw reshdw ershdw hresdw rhesdw hersdw ehrsdw rehsdw erhsdw shrdew hsrdew srhdew rshdew hrsdew rhsdew shdrew hsdrew sdhrew dshrew hdsrew dhsrew srdhew rsdhew sdrhew dsrhew rdshew drshew hrdsew rhdsew hdrsew dhrsew rdhsew drhsew shedrw hsedrw sehdrw eshdrw hesdrw ehsdrw shderw hsderw sdherw dsherw hdserw dhserw sedhrw esdhrw sdehrw dsehrw edshrw deshrw hedsrw ehdsrw hdesrw dhesrw edhsrw dehsrw sredhw rsedhw serdhw esrdhw resdhw ersdhw srdehw rsdehw sdrehw dsrehw rdsehw drsehw sedrhw esdrhw sderhw dserhw edsrhw desrhw redshw erdshw rdeshw dreshw edrshw dershw hredsw rhedsw herdsw ehrdsw rehdsw erhdsw hrdesw rhdesw hdresw dhresw rdhesw drhesw hedrsw ehdrsw hdersw dhersw edhrsw dehrsw redhsw erdhsw rdehsw drehsw edrhsw derhsw shrwde hsrwde srhwde rshwde hrswde rhswde shwrde hswrde swhrde wshrde hwsrde whsrde srwhde rswhde swrhde wsrhde rwshde wrshde hrwsde rhwsde hwrsde whrsde rwhsde wrhsde shrdwe hsrdwe srhdwe rshdwe hrsdwe rhsdwe shdrwe hsdrwe sdhrwe dshrwe hdsrwe dhsrwe srdhwe rsdhwe sdrhwe dsrhwe rdshwe drshwe hrdswe rhdswe hdrswe dhrswe rdhswe drhswe shwdre hswdre swhdre wshdre hwsdre whsdre shdwre hsdwre sdhwre dshwre hdswre dhswre swdhre wsdhre sdwhre dswhre wdshre dwshre hwdsre whdsre hdwsre dhwsre wdhsre dwhsre srwdhe rswdhe swrdhe wsrdhe rwsdhe wrsdhe srdwhe rsdwhe sdrwhe dsrwhe rdswhe drswhe swdrhe wsdrhe sdwrhe dswrhe wdsrhe dwsrhe rwdshe wrdshe rdwshe drwshe wdrshe dwrshe hrwdse rhwdse hwrdse whrdse rwhdse wrhdse hrdwse rhdwse hdrwse dhrwse rdhwse drhwse hwdrse whdrse hdwrse dhwrse wdhrse dwhrse rwdhse wrdhse rdwhse drwhse wdrhse dwrhse shewdr hsewdr sehwdr eshwdr heswdr ehswdr shwedr hswedr swhedr wshedr hwsedr whsedr sewhdr eswhdr swehdr wsehdr ewshdr weshdr hewsdr ehwsdr hwesdr whesdr ewhsdr wehsdr shedwr hsedwr sehdwr eshdwr hesdwr ehsdwr shdewr hsdewr sdhewr dshewr hdsewr dhsewr sedhwr esdhwr sdehwr dsehwr edshwr deshwr hedswr ehdswr hdeswr dheswr edhswr dehswr shwder hswder swhder wshder hwsder whsder shdwer hsdwer sdhwer dshwer hdswer dhswer swdher wsdher sdwher dswher wdsher dwsher hwdser whdser hdwser dhwser wdhser dwhser sewdhr eswdhr swedhr wsedhr ewsdhr wesdhr sedwhr esdwhr sdewhr dsewhr edswhr deswhr swdehr wsdehr sdwehr dswehr wdsehr dwsehr ewdshr wedshr edwshr dewshr wdeshr dweshr hewdsr ehwdsr hwedsr whedsr ewhdsr wehdsr hedwsr ehdwsr hdewsr dhewsr edhwsr dehwsr hwdesr whdesr hdwesr dhwesr wdhesr dwhesr ewdhsr wedhsr edwhsr dewhsr wdehsr dwehsr srewdh rsewdh serwdh esrwdh reswdh erswdh srwedh rswedh swredh wsredh rwsedh wrsedh sewrdh eswrdh swerdh wserdh ewsrdh wesrdh rewsdh erwsdh rwesdh wresdh ewrsdh wersdh sredwh rsedwh serdwh esrdwh resdwh ersdwh srdewh rsdewh sdrewh dsrewh rdsewh drsewh sedrwh esdrwh sderwh dserwh edsrwh desrwh redswh erdswh rdeswh dreswh edrswh derswh srwdeh rswdeh swrdeh wsrdeh rwsdeh wrsdeh srdweh rsdweh sdrweh dsrweh rdsweh drsweh swdreh wsdreh sdwreh dswreh wdsreh dwsreh rwdseh wrdseh rdwseh drwseh wdrseh dwrseh sewdrh eswdrh swedrh wsedrh ewsdrh wesdrh sedwrh esdwrh sdewrh dsewrh edswrh deswrh swderh wsderh sdwerh dswerh wdserh dwserh ewdsrh wedsrh edwsrh dewsrh wdesrh dwesrh rewdsh erwdsh rwedsh wredsh ewrdsh werdsh redwsh erdwsh rdewsh drewsh edrwsh derwsh rwdesh wrdesh rdwesh drwesh wdresh dwresh ewdrsh wedrsh edwrsh dewrsh wdersh dwersh hrewds rhewds herwds ehrwds rehwds erhwds hrweds rhweds hwreds whreds rwheds wrheds hewrds ehwrds hwerds wherds ewhrds wehrds rewhds erwhds rwehds wrehds ewrhds werhds hredws rhedws herdws ehrdws rehdws erhdws hrdews rhdews hdrews dhrews rdhews drhews hedrws ehdrws hderws dherws edhrws dehrws redhws erdhws rdehws drehws edrhws derhws hrwdes rhwdes hwrdes whrdes rwhdes wrhdes hrdwes rhdwes hdrwes dhrwes rdhwes drhwes hwdres whdres hdwres dhwres wdhres dwhres rwdhes wrdhes rdwhes drwhes wdrhes dwrhes hewdrs ehwdrs hwedrs whedrs ewhdrs wehdrs hedwrs ehdwrs hdewrs dhewrs edhwrs dehwrs hwders whders hdwers dhwers wdhers dwhers ewdhrs wedhrs edwhrs dewhrs wdehrs dwehrs rewdhs erwdhs rwedhs wredhs ewrdhs werdhs redwhs erdwhs rdewhs drewhs edrwhs derwhs rwdehs wrdehs rdwehs drwehs wdrehs dwrehs ewdrhs wedrhs edwrhs dewrhs wderhs dwerhs
Note: these 'words' (valid or invalid) are all the permutations of the word shrewd. These words are obtained by scrambling the letters in shrewd.