unfact nufact ufnact funact nfuact fnuact unafct nuafct uanfct aunfct naufct anufct ufanct fuanct uafnct aufnct faunct afunct nfauct fnauct nafuct anfuct fanuct afnuct unfcat nufcat ufncat funcat nfucat fnucat uncfat nucfat ucnfat cunfat ncufat cnufat ufcnat fucnat ucfnat cufnat fcunat cfunat nfcuat fncuat ncfuat cnfuat fcnuat cfnuat unacft nuacft uancft auncft naucft anucft uncaft nucaft ucnaft cunaft ncuaft cnuaft uacnft aucnft ucanft cuanft acunft caunft nacuft ancuft ncauft cnauft acnuft canuft ufacnt fuacnt uafcnt aufcnt faucnt afucnt ufcant fucant ucfant cufant fcuant cfuant uacfnt aucfnt ucafnt cuafnt acufnt caufnt facunt afcunt fcaunt cfaunt acfunt cafunt nfacut fnacut nafcut anfcut fancut afncut nfcaut fncaut ncfaut cnfaut fcnaut cfnaut nacfut ancfut ncafut cnafut acnfut canfut facnut afcnut fcanut cfanut acfnut cafnut unfatc nufatc ufnatc funatc nfuatc fnuatc unaftc nuaftc uanftc aunftc nauftc anuftc ufantc fuantc uafntc aufntc fauntc afuntc nfautc fnautc nafutc anfutc fanutc afnutc unftac nuftac ufntac funtac nfutac fnutac untfac nutfac utnfac tunfac ntufac tnufac uftnac futnac utfnac tufnac ftunac tfunac nftuac fntuac ntfuac tnfuac ftnuac tfnuac unatfc nuatfc uantfc auntfc nautfc anutfc untafc nutafc utnafc tunafc ntuafc tnuafc uatnfc autnfc utanfc tuanfc atunfc taunfc natufc antufc ntaufc tnaufc atnufc tanufc ufatnc fuatnc uaftnc auftnc fautnc afutnc uftanc futanc utfanc tufanc ftuanc tfuanc uatfnc autfnc utafnc tuafnc atufnc taufnc fatunc aftunc ftaunc tfaunc atfunc tafunc nfatuc fnatuc naftuc anftuc fantuc afntuc nftauc fntauc ntfauc tnfauc ftnauc tfnauc natfuc antfuc ntafuc tnafuc atnfuc tanfuc fatnuc aftnuc ftanuc tfanuc atfnuc tafnuc unfcta nufcta ufncta functa nfucta fnucta uncfta nucfta ucnfta cunfta ncufta cnufta ufcnta fucnta ucfnta cufnta fcunta cfunta nfcuta fncuta ncfuta cnfuta fcnuta cfnuta unftca nuftca ufntca funtca nfutca fnutca untfca nutfca utnfca tunfca ntufca tnufca uftnca futnca utfnca tufnca ftunca tfunca nftuca fntuca ntfuca tnfuca ftnuca tfnuca unctfa nuctfa ucntfa cuntfa ncutfa cnutfa untcfa nutcfa utncfa tuncfa ntucfa tnucfa uctnfa cutnfa utcnfa tucnfa ctunfa tcunfa nctufa cntufa ntcufa tncufa ctnufa tcnufa ufctna fuctna ucftna cuftna fcutna cfutna uftcna futcna utfcna tufcna ftucna tfucna uctfna cutfna utcfna tucfna ctufna tcufna fctuna cftuna ftcuna tfcuna ctfuna tcfuna nfctua fnctua ncftua cnftua fcntua cfntua nftcua fntcua ntfcua tnfcua ftncua tfncua nctfua cntfua ntcfua tncfua ctnfua tcnfua fctnua cftnua ftcnua tfcnua ctfnua tcfnua unactf nuactf uanctf aunctf nauctf anuctf uncatf nucatf ucnatf cunatf ncuatf cnuatf uacntf aucntf ucantf cuantf acuntf cauntf nacutf ancutf ncautf cnautf acnutf canutf unatcf nuatcf uantcf auntcf nautcf anutcf untacf nutacf utnacf tunacf ntuacf tnuacf uatncf autncf utancf tuancf atuncf tauncf natucf antucf ntaucf tnaucf atnucf tanucf unctaf nuctaf ucntaf cuntaf ncutaf cnutaf untcaf nutcaf utncaf tuncaf ntucaf tnucaf uctnaf cutnaf utcnaf tucnaf ctunaf tcunaf nctuaf cntuaf ntcuaf tncuaf ctnuaf tcnuaf uactnf auctnf ucatnf cuatnf acutnf cautnf uatcnf autcnf utacnf tuacnf atucnf taucnf uctanf cutanf utcanf tucanf ctuanf tcuanf actunf catunf atcunf tacunf ctaunf tcaunf nactuf anctuf ncatuf cnatuf acntuf cantuf natcuf antcuf ntacuf tnacuf atncuf tancuf nctauf cntauf ntcauf tncauf ctnauf tcnauf actnuf catnuf atcnuf tacnuf ctanuf tcanuf ufactn fuactn uafctn aufctn fauctn afuctn ufcatn fucatn ucfatn cufatn fcuatn cfuatn uacftn aucftn ucaftn cuaftn acuftn cauftn facutn afcutn fcautn cfautn acfutn cafutn ufatcn fuatcn uaftcn auftcn fautcn afutcn uftacn futacn utfacn tufacn ftuacn tfuacn uatfcn autfcn utafcn tuafcn atufcn taufcn fatucn aftucn ftaucn tfaucn atfucn tafucn ufctan fuctan ucftan cuftan fcutan cfutan uftcan futcan utfcan tufcan ftucan tfucan uctfan cutfan utcfan tucfan ctufan tcufan fctuan cftuan ftcuan tfcuan ctfuan tcfuan uactfn auctfn ucatfn cuatfn acutfn cautfn uatcfn autcfn utacfn tuacfn atucfn taucfn uctafn cutafn utcafn tucafn ctuafn tcuafn actufn catufn atcufn tacufn ctaufn tcaufn factun afctun fcatun cfatun acftun caftun fatcun aftcun ftacun tfacun atfcun tafcun fctaun cftaun ftcaun tfcaun ctfaun tcfaun actfun catfun atcfun tacfun ctafun tcafun nfactu fnactu nafctu anfctu fanctu afnctu nfcatu fncatu ncfatu cnfatu fcnatu cfnatu nacftu ancftu ncaftu cnaftu acnftu canftu facntu afcntu fcantu cfantu acfntu cafntu nfatcu fnatcu naftcu anftcu fantcu afntcu nftacu fntacu ntfacu tnfacu ftnacu tfnacu natfcu antfcu ntafcu tnafcu atnfcu tanfcu fatncu aftncu ftancu tfancu atfncu tafncu nfctau fnctau ncftau cnftau fcntau cfntau nftcau fntcau ntfcau tnfcau ftncau tfncau nctfau cntfau ntcfau tncfau ctnfau tcnfau fctnau cftnau ftcnau tfcnau ctfnau tcfnau nactfu anctfu ncatfu cnatfu acntfu cantfu natcfu antcfu ntacfu tnacfu atncfu tancfu nctafu cntafu ntcafu tncafu ctnafu tcnafu actnfu catnfu atcnfu tacnfu ctanfu tcanfu factnu afctnu fcatnu cfatnu acftnu caftnu fatcnu aftcnu ftacnu tfacnu atfcnu tafcnu fctanu cftanu ftcanu tfcanu ctfanu tcfanu actfnu catfnu atcfnu tacfnu ctafnu tcafnu
Note: these 'words' (valid or invalid) are all the permutations of the word unfact. These words are obtained by scrambling the letters in unfact.