unfirm nufirm ufnirm funirm nfuirm fnuirm unifrm nuifrm uinfrm iunfrm niufrm inufrm ufinrm fuinrm uifnrm iufnrm fiunrm ifunrm nfiurm fniurm nifurm infurm finurm ifnurm unfrim nufrim ufnrim funrim nfurim fnurim unrfim nurfim urnfim runfim nrufim rnufim ufrnim furnim urfnim rufnim frunim rfunim nfruim fnruim nrfuim rnfuim frnuim rfnuim unirfm nuirfm uinrfm iunrfm niurfm inurfm unrifm nurifm urnifm runifm nruifm rnuifm uirnfm iurnfm urinfm ruinfm irunfm riunfm nirufm inrufm nriufm rniufm irnufm rinufm ufirnm fuirnm uifrnm iufrnm fiurnm ifurnm ufrinm furinm urfinm rufinm fruinm rfuinm uirfnm iurfnm urifnm ruifnm irufnm riufnm firunm ifrunm friunm rfiunm irfunm rifunm nfirum fnirum nifrum infrum finrum ifnrum nfrium fnrium nrfium rnfium frnium rfnium nirfum inrfum nrifum rnifum irnfum rinfum firnum ifrnum frinum rfinum irfnum rifnum unfimr nufimr ufnimr funimr nfuimr fnuimr unifmr nuifmr uinfmr iunfmr niufmr inufmr ufinmr fuinmr uifnmr iufnmr fiunmr ifunmr nfiumr fniumr nifumr infumr finumr ifnumr unfmir nufmir ufnmir funmir nfumir fnumir unmfir numfir umnfir munfir nmufir mnufir ufmnir fumnir umfnir mufnir fmunir mfunir nfmuir fnmuir nmfuir mnfuir fmnuir mfnuir unimfr nuimfr uinmfr iunmfr niumfr inumfr unmifr numifr umnifr munifr nmuifr mnuifr uimnfr iumnfr uminfr muinfr imunfr miunfr nimufr inmufr nmiufr mniufr imnufr minufr ufimnr fuimnr uifmnr iufmnr fiumnr ifumnr ufminr fuminr umfinr mufinr fmuinr mfuinr uimfnr iumfnr umifnr muifnr imufnr miufnr fimunr ifmunr fmiunr mfiunr imfunr mifunr nfimur fnimur nifmur infmur finmur ifnmur nfmiur fnmiur nmfiur mnfiur fmniur mfniur nimfur inmfur nmifur mnifur imnfur minfur fimnur ifmnur fminur mfinur imfnur mifnur unfrmi nufrmi ufnrmi funrmi nfurmi fnurmi unrfmi nurfmi urnfmi runfmi nrufmi rnufmi ufrnmi furnmi urfnmi rufnmi frunmi rfunmi nfrumi fnrumi nrfumi rnfumi frnumi rfnumi unfmri nufmri ufnmri funmri nfumri fnumri unmfri numfri umnfri munfri nmufri mnufri ufmnri fumnri umfnri mufnri fmunri mfunri nfmuri fnmuri nmfuri mnfuri fmnuri mfnuri unrmfi nurmfi urnmfi runmfi nrumfi rnumfi unmrfi numrfi umnrfi munrfi nmurfi mnurfi urmnfi rumnfi umrnfi murnfi rmunfi mrunfi nrmufi rnmufi nmrufi mnrufi rmnufi mrnufi ufrmni furmni urfmni rufmni frumni rfumni ufmrni fumrni umfrni mufrni fmurni mfurni urmfni rumfni umrfni murfni rmufni mrufni frmuni rfmuni fmruni mfruni rmfuni mrfuni nfrmui fnrmui nrfmui rnfmui frnmui rfnmui nfmrui fnmrui nmfrui mnfrui fmnrui mfnrui nrmfui rnmfui nmrfui mnrfui rmnfui mrnfui frmnui rfmnui fmrnui mfrnui rmfnui mrfnui unirmf nuirmf uinrmf iunrmf niurmf inurmf unrimf nurimf urnimf runimf nruimf rnuimf uirnmf iurnmf urinmf ruinmf irunmf riunmf nirumf inrumf nriumf rniumf irnumf rinumf unimrf nuimrf uinmrf iunmrf niumrf inumrf unmirf numirf umnirf munirf nmuirf mnuirf uimnrf iumnrf uminrf muinrf imunrf miunrf nimurf inmurf nmiurf mniurf imnurf minurf unrmif nurmif urnmif runmif nrumif rnumif unmrif numrif umnrif munrif nmurif mnurif urmnif rumnif umrnif murnif rmunif mrunif nrmuif rnmuif nmruif mnruif rmnuif mrnuif uirmnf iurmnf urimnf ruimnf irumnf riumnf uimrnf iumrnf umirnf muirnf imurnf miurnf urminf ruminf umrinf murinf rmuinf mruinf irmunf rimunf imrunf mirunf rmiunf mriunf nirmuf inrmuf nrimuf rnimuf irnmuf rinmuf nimruf inmruf nmiruf mniruf imnruf minruf nrmiuf rnmiuf nmriuf mnriuf rmniuf mrniuf irmnuf rimnuf imrnuf mirnuf rminuf mrinuf ufirmn fuirmn uifrmn iufrmn fiurmn ifurmn ufrimn furimn urfimn rufimn fruimn rfuimn uirfmn iurfmn urifmn ruifmn irufmn riufmn firumn ifrumn friumn rfiumn irfumn rifumn ufimrn fuimrn uifmrn iufmrn fiumrn ifumrn ufmirn fumirn umfirn mufirn fmuirn mfuirn uimfrn iumfrn umifrn muifrn imufrn miufrn fimurn ifmurn fmiurn mfiurn imfurn mifurn ufrmin furmin urfmin rufmin frumin rfumin ufmrin fumrin umfrin mufrin fmurin mfurin urmfin rumfin umrfin murfin rmufin mrufin frmuin rfmuin fmruin mfruin rmfuin mrfuin uirmfn iurmfn urimfn ruimfn irumfn riumfn uimrfn iumrfn umirfn muirfn imurfn miurfn urmifn rumifn umrifn murifn rmuifn mruifn irmufn rimufn imrufn mirufn rmiufn mriufn firmun ifrmun frimun rfimun irfmun rifmun fimrun ifmrun fmirun mfirun imfrun mifrun frmiun rfmiun fmriun mfriun rmfiun mrfiun irmfun rimfun imrfun mirfun rmifun mrifun nfirmu fnirmu nifrmu infrmu finrmu ifnrmu nfrimu fnrimu nrfimu rnfimu frnimu rfnimu nirfmu inrfmu nrifmu rnifmu irnfmu rinfmu firnmu ifrnmu frinmu rfinmu irfnmu rifnmu nfimru fnimru nifmru infmru finmru ifnmru nfmiru fnmiru nmfiru mnfiru fmniru mfniru nimfru inmfru nmifru mnifru imnfru minfru fimnru ifmnru fminru mfinru imfnru mifnru nfrmiu fnrmiu nrfmiu rnfmiu frnmiu rfnmiu nfmriu fnmriu nmfriu mnfriu fmnriu mfnriu nrmfiu rnmfiu nmrfiu mnrfiu rmnfiu mrnfiu frmniu rfmniu fmrniu mfrniu rmfniu mrfniu nirmfu inrmfu nrimfu rnimfu irnmfu rinmfu nimrfu inmrfu nmirfu mnirfu imnrfu minrfu nrmifu rnmifu nmrifu mnrifu rmnifu mrnifu irmnfu rimnfu imrnfu mirnfu rminfu mrinfu firmnu ifrmnu frimnu rfimnu irfmnu rifmnu fimrnu ifmrnu fmirnu mfirnu imfrnu mifrnu frminu rfminu fmrinu mfrinu rmfinu mrfinu irmfnu rimfnu imrfnu mirfnu rmifnu mrifnu
Note: these 'words' (valid or invalid) are all the permutations of the word unfirm. These words are obtained by scrambling the letters in unfirm.