frugal rfugal furgal ufrgal rufgal urfgal frgual rfgual fgrual gfrual rgfual grfual fugral ufgral fgural gfural ugfral gufral rugfal urgfal rgufal grufal ugrfal gurfal fruagl rfuagl furagl ufragl rufagl urfagl fraugl rfaugl farugl afrugl rafugl arfugl fuargl ufargl faurgl afurgl uafrgl aufrgl ruafgl urafgl raufgl arufgl uarfgl aurfgl frgaul rfgaul fgraul gfraul rgfaul grfaul fragul rfagul fargul afrgul rafgul arfgul fgarul gfarul fagrul afgrul gafrul agfrul rgaful graful ragful argful garful agrful fugarl ufgarl fguarl gfuarl ugfarl gufarl fuagrl ufagrl faugrl afugrl uafgrl aufgrl fgaurl gfaurl fagurl afgurl gafurl agfurl ugafrl guafrl uagfrl augfrl gaufrl agufrl rugafl urgafl rguafl gruafl ugrafl gurafl ruagfl uragfl raugfl arugfl uargfl aurgfl rgaufl graufl ragufl argufl garufl agrufl ugarfl guarfl uagrfl augrfl gaurfl agurfl frugla rfugla furgla ufrgla rufgla urfgla frgula rfgula fgrula gfrula rgfula grfula fugrla ufgrla fgurla gfurla ugfrla gufrla rugfla urgfla rgufla grufla ugrfla gurfla frulga rfulga furlga ufrlga ruflga urflga frluga rfluga flruga lfruga rlfuga lrfuga fulrga uflrga flurga lfurga ulfrga lufrga rulfga urlfga rlufga lrufga ulrfga lurfga frglua rfglua fgrlua gfrlua rgflua grflua frlgua rflgua flrgua lfrgua rlfgua lrfgua fglrua gflrua flgrua lfgrua glfrua lgfrua rglfua grlfua rlgfua lrgfua glrfua lgrfua fuglra ufglra fgulra gfulra ugflra guflra fulgra uflgra flugra lfugra ulfgra lufgra fglura gflura flgura lfgura glfura lgfura uglfra gulfra ulgfra lugfra glufra lgufra ruglfa urglfa rgulfa grulfa ugrlfa gurlfa rulgfa urlgfa rlugfa lrugfa ulrgfa lurgfa rglufa grlufa rlgufa lrgufa glrufa lgrufa uglrfa gulrfa ulgrfa lugrfa glurfa lgurfa frualg rfualg furalg ufralg rufalg urfalg fraulg rfaulg farulg afrulg rafulg arfulg fuarlg ufarlg faurlg afurlg uafrlg aufrlg ruaflg uraflg rauflg aruflg uarflg aurflg frulag rfulag furlag ufrlag ruflag urflag frluag rfluag flruag lfruag rlfuag lrfuag fulrag uflrag flurag lfurag ulfrag lufrag rulfag urlfag rlufag lrufag ulrfag lurfag fralug rfalug farlug afrlug raflug arflug frlaug rflaug flraug lfraug rlfaug lrfaug falrug aflrug flarug lfarug alfrug lafrug ralfug arlfug rlafug lrafug alrfug larfug fualrg ufalrg faulrg afulrg uaflrg auflrg fularg uflarg fluarg lfuarg ulfarg lufarg falurg aflurg flaurg lfaurg alfurg lafurg ualfrg aulfrg ulafrg luafrg alufrg laufrg rualfg uralfg raulfg arulfg uarlfg aurlfg rulafg urlafg rluafg lruafg ulrafg lurafg ralufg arlufg rlaufg lraufg alrufg larufg ualrfg aulrfg ularfg luarfg alurfg laurfg frgalu rfgalu fgralu gfralu rgfalu grfalu fraglu rfaglu farglu afrglu rafglu arfglu fgarlu gfarlu fagrlu afgrlu gafrlu agfrlu rgaflu graflu ragflu argflu garflu agrflu frglau rfglau fgrlau gfrlau rgflau grflau frlgau rflgau flrgau lfrgau rlfgau lrfgau fglrau gflrau flgrau lfgrau glfrau lgfrau rglfau grlfau rlgfau lrgfau glrfau lgrfau fralgu rfalgu farlgu afrlgu raflgu arflgu frlagu rflagu flragu lfragu rlfagu lrfagu falrgu aflrgu flargu lfargu alfrgu lafrgu ralfgu arlfgu rlafgu lrafgu alrfgu larfgu fgalru gfalru faglru afglru gaflru agflru fglaru gflaru flgaru lfgaru glfaru lgfaru falgru aflgru flagru lfagru alfgru lafgru galfru aglfru glafru lgafru algfru lagfru rgalfu gralfu raglfu arglfu garlfu agrlfu rglafu grlafu rlgafu lrgafu glrafu lgrafu ralgfu arlgfu rlagfu lragfu alrgfu largfu galrfu aglrfu glarfu lgarfu algrfu lagrfu fugalr ufgalr fgualr gfualr ugfalr gufalr fuaglr ufaglr fauglr afuglr uafglr aufglr fgaulr gfaulr fagulr afgulr gafulr agfulr ugaflr guaflr uagflr augflr gauflr aguflr fuglar ufglar fgular gfular ugflar guflar fulgar uflgar flugar lfugar ulfgar lufgar fgluar gfluar flguar lfguar glfuar lgfuar uglfar gulfar ulgfar lugfar glufar lgufar fualgr ufalgr faulgr afulgr uaflgr auflgr fulagr uflagr fluagr lfuagr ulfagr lufagr falugr aflugr flaugr lfaugr alfugr lafugr ualfgr aulfgr ulafgr luafgr alufgr laufgr fgalur gfalur faglur afglur gaflur agflur fglaur gflaur flgaur lfgaur glfaur lgfaur falgur aflgur flagur lfagur alfgur lafgur galfur aglfur glafur lgafur algfur lagfur ugalfr gualfr uaglfr auglfr gaulfr agulfr uglafr gulafr ulgafr lugafr gluafr lguafr ualgfr aulgfr ulagfr luagfr alugfr laugfr galufr aglufr glaufr lgaufr algufr lagufr rugalf urgalf rgualf grualf ugralf guralf ruaglf uraglf rauglf aruglf uarglf aurglf rgaulf graulf ragulf argulf garulf agrulf ugarlf guarlf uagrlf augrlf gaurlf agurlf ruglaf urglaf rgulaf grulaf ugrlaf gurlaf rulgaf urlgaf rlugaf lrugaf ulrgaf lurgaf rgluaf grluaf rlguaf lrguaf glruaf lgruaf uglraf gulraf ulgraf lugraf gluraf lguraf rualgf uralgf raulgf arulgf uarlgf aurlgf rulagf urlagf rluagf lruagf ulragf luragf ralugf arlugf rlaugf lraugf alrugf larugf ualrgf aulrgf ulargf luargf alurgf laurgf rgaluf graluf ragluf argluf garluf agrluf rglauf grlauf rlgauf lrgauf glrauf lgrauf ralguf arlguf rlaguf lraguf alrguf larguf galruf aglruf glaruf lgaruf algruf lagruf ugalrf gualrf uaglrf auglrf gaulrf agulrf uglarf gularf ulgarf lugarf gluarf lguarf ualgrf aulgrf ulagrf luagrf alugrf laugrf galurf aglurf glaurf lgaurf algurf lagurf
Note: these 'words' (valid or invalid) are all the permutations of the word frugal. These words are obtained by scrambling the letters in frugal.