fastly afstly fsatly sfatly asftly saftly fatsly aftsly ftasly tfasly atfsly tafsly fstaly sftaly ftsaly tfsaly stfaly tsfaly astfly satfly atsfly tasfly stafly tsafly faslty afslty fsalty sfalty asflty saflty falsty aflsty flasty lfasty alfsty lafsty fslaty sflaty flsaty lfsaty slfaty lsfaty aslfty salfty alsfty lasfty slafty lsafty fatlsy aftlsy ftalsy tfalsy atflsy taflsy faltsy afltsy flatsy lfatsy alftsy laftsy ftlasy tflasy fltasy lftasy tlfasy ltfasy atlfsy talfsy altfsy latfsy tlafsy ltafsy fstlay sftlay ftslay tfslay stflay tsflay fsltay sfltay flstay lfstay slftay lsftay ftlsay tflsay fltsay lftsay tlfsay ltfsay stlfay tslfay sltfay lstfay tlsfay ltsfay astlfy satlfy atslfy taslfy stalfy tsalfy asltfy saltfy alstfy lastfy slatfy lsatfy atlsfy talsfy altsfy latsfy tlasfy ltasfy stlafy tslafy sltafy lstafy tlsafy ltsafy fastyl afstyl fsatyl sfatyl asftyl saftyl fatsyl aftsyl ftasyl tfasyl atfsyl tafsyl fstayl sftayl ftsayl tfsayl stfayl tsfayl astfyl satfyl atsfyl tasfyl stafyl tsafyl fasytl afsytl fsaytl sfaytl asfytl safytl faystl afystl fyastl yfastl ayfstl yafstl fsyatl sfyatl fysatl yfsatl syfatl ysfatl asyftl sayftl aysftl yasftl syaftl ysaftl fatysl aftysl ftaysl tfaysl atfysl tafysl faytsl afytsl fyatsl yfatsl ayftsl yaftsl ftyasl tfyasl fytasl yftasl tyfasl ytfasl atyfsl tayfsl aytfsl yatfsl tyafsl ytafsl fstyal sftyal ftsyal tfsyal stfyal tsfyal fsytal sfytal fystal yfstal syftal ysftal ftysal tfysal fytsal yftsal tyfsal ytfsal styfal tsyfal sytfal ystfal tysfal ytsfal astyfl satyfl atsyfl tasyfl stayfl tsayfl asytfl saytfl aystfl yastfl syatfl ysatfl atysfl taysfl aytsfl yatsfl tyasfl ytasfl styafl tsyafl sytafl ystafl tysafl ytsafl faslyt afslyt fsalyt sfalyt asflyt saflyt falsyt aflsyt flasyt lfasyt alfsyt lafsyt fslayt sflayt flsayt lfsayt slfayt lsfayt aslfyt salfyt alsfyt lasfyt slafyt lsafyt fasylt afsylt fsaylt sfaylt asfylt safylt fayslt afyslt fyaslt yfaslt ayfslt yafslt fsyalt sfyalt fysalt yfsalt syfalt ysfalt asyflt sayflt aysflt yasflt syaflt ysaflt falyst aflyst flayst lfayst alfyst lafyst faylst afylst fyalst yfalst ayflst yaflst flyast lfyast fylast yflast lyfast ylfast alyfst layfst aylfst yalfst lyafst ylafst fslyat sflyat flsyat lfsyat slfyat lsfyat fsylat sfylat fyslat yfslat syflat ysflat flysat lfysat fylsat yflsat lyfsat ylfsat slyfat lsyfat sylfat yslfat lysfat ylsfat aslyft salyft alsyft lasyft slayft lsayft asylft saylft ayslft yaslft syalft ysalft alysft laysft aylsft yalsft lyasft ylasft slyaft lsyaft sylaft yslaft lysaft ylsaft fatlys aftlys ftalys tfalys atflys taflys faltys afltys flatys lfatys alftys laftys ftlays tflays fltays lftays tlfays ltfays atlfys talfys altfys latfys tlafys ltafys fatyls aftyls ftayls tfayls atfyls tafyls faytls afytls fyatls yfatls ayftls yaftls ftyals tfyals fytals yftals tyfals ytfals atyfls tayfls aytfls yatfls tyafls ytafls falyts aflyts flayts lfayts alfyts lafyts faylts afylts fyalts yfalts ayflts yaflts flyats lfyats fylats yflats lyfats ylfats alyfts layfts aylfts yalfts lyafts ylafts ftlyas tflyas fltyas lftyas tlfyas ltfyas ftylas tfylas fytlas yftlas tyflas ytflas flytas lfytas fyltas yfltas lyftas ylftas tlyfas ltyfas tylfas ytlfas lytfas yltfas atlyfs talyfs altyfs latyfs tlayfs ltayfs atylfs taylfs aytlfs yatlfs tyalfs ytalfs alytfs laytfs ayltfs yaltfs lyatfs ylatfs tlyafs ltyafs tylafs ytlafs lytafs yltafs fstlya sftlya ftslya tfslya stflya tsflya fsltya sfltya flstya lfstya slftya lsftya ftlsya tflsya fltsya lftsya tlfsya ltfsya stlfya tslfya sltfya lstfya tlsfya ltsfya fstyla sftyla ftsyla tfsyla stfyla tsfyla fsytla sfytla fystla yfstla syftla ysftla ftysla tfysla fytsla yftsla tyfsla ytfsla styfla tsyfla sytfla ystfla tysfla ytsfla fslyta sflyta flsyta lfsyta slfyta lsfyta fsylta sfylta fyslta yfslta syflta ysflta flysta lfysta fylsta yflsta lyfsta ylfsta slyfta lsyfta sylfta yslfta lysfta ylsfta ftlysa tflysa fltysa lftysa tlfysa ltfysa ftylsa tfylsa fytlsa yftlsa tyflsa ytflsa flytsa lfytsa fyltsa yfltsa lyftsa ylftsa tlyfsa ltyfsa tylfsa ytlfsa lytfsa yltfsa stlyfa tslyfa sltyfa lstyfa tlsyfa ltsyfa stylfa tsylfa sytlfa ystlfa tyslfa ytslfa slytfa lsytfa syltfa ysltfa lystfa ylstfa tlysfa ltysfa tylsfa ytlsfa lytsfa yltsfa astlyf satlyf atslyf taslyf stalyf tsalyf asltyf saltyf alstyf lastyf slatyf lsatyf atlsyf talsyf altsyf latsyf tlasyf ltasyf stlayf tslayf sltayf lstayf tlsayf ltsayf astylf satylf atsylf tasylf staylf tsaylf asytlf saytlf aystlf yastlf syatlf ysatlf atyslf tayslf aytslf yatslf tyaslf ytaslf styalf tsyalf sytalf ystalf tysalf ytsalf aslytf salytf alsytf lasytf slaytf lsaytf asyltf sayltf aysltf yasltf syaltf ysaltf alystf laystf aylstf yalstf lyastf ylastf slyatf lsyatf sylatf yslatf lysatf ylsatf atlysf talysf altysf latysf tlaysf ltaysf atylsf taylsf aytlsf yatlsf tyalsf ytalsf alytsf laytsf ayltsf yaltsf lyatsf ylatsf tlyasf ltyasf tylasf ytlasf lytasf yltasf stlyaf tslyaf sltyaf lstyaf tlsyaf ltsyaf stylaf tsylaf sytlaf ystlaf tyslaf ytslaf slytaf lsytaf syltaf ysltaf lystaf ylstaf tlysaf ltysaf tylsaf ytlsaf lytsaf yltsaf
Note: these 'words' (valid or invalid) are all the permutations of the word fastly. These words are obtained by scrambling the letters in fastly.