unlids nulids ulnids lunids nluids lnuids unilds nuilds uinlds iunlds niulds inulds ulinds luinds uilnds iulnds liunds ilunds nliuds lniuds niluds inluds linuds ilnuds unldis nuldis ulndis lundis nludis lnudis undlis nudlis udnlis dunlis ndulis dnulis uldnis ludnis udlnis dulnis ldunis dlunis nlduis lnduis ndluis dnluis ldnuis dlnuis unidls nuidls uindls iundls niudls inudls undils nudils udnils dunils nduils dnuils uidnls iudnls udinls duinls idunls diunls niduls induls ndiuls dniuls idnuls dinuls ulidns luidns uildns iuldns liudns iludns uldins ludins udlins dulins lduins dluins uidlns iudlns udilns duilns idulns diulns liduns ilduns ldiuns dliuns idluns diluns nlidus lnidus nildus inldus lindus ilndus nldius lndius ndlius dnlius ldnius dlnius nidlus indlus ndilus dnilus idnlus dinlus lidnus ildnus ldinus dlinus idlnus dilnus unlisd nulisd ulnisd lunisd nluisd lnuisd unilsd nuilsd uinlsd iunlsd niulsd inulsd ulinsd luinsd uilnsd iulnsd liunsd ilunsd nliusd lniusd nilusd inlusd linusd ilnusd unlsid nulsid ulnsid lunsid nlusid lnusid unslid nuslid usnlid sunlid nsulid snulid ulsnid lusnid uslnid sulnid lsunid slunid nlsuid lnsuid nsluid snluid lsnuid slnuid unisld nuisld uinsld iunsld niusld inusld unsild nusild usnild sunild nsuild snuild uisnld iusnld usinld suinld isunld siunld nisuld insuld nsiuld sniuld isnuld sinuld ulisnd luisnd uilsnd iulsnd liusnd ilusnd ulsind lusind uslind sulind lsuind sluind uislnd iuslnd usilnd suilnd isulnd siulnd lisund ilsund lsiund sliund islund silund nlisud lnisud nilsud inlsud linsud ilnsud nlsiud lnsiud nsliud snliud lsniud slniud nislud inslud nsilud snilud isnlud sinlud lisnud ilsnud lsinud slinud islnud silnud unldsi nuldsi ulndsi lundsi nludsi lnudsi undlsi nudlsi udnlsi dunlsi ndulsi dnulsi uldnsi ludnsi udlnsi dulnsi ldunsi dlunsi nldusi lndusi ndlusi dnlusi ldnusi dlnusi unlsdi nulsdi ulnsdi lunsdi nlusdi lnusdi unsldi nusldi usnldi sunldi nsuldi snuldi ulsndi lusndi uslndi sulndi lsundi slundi nlsudi lnsudi nsludi snludi lsnudi slnudi undsli nudsli udnsli dunsli ndusli dnusli unsdli nusdli usndli sundli nsudli snudli udsnli dusnli usdnli sudnli dsunli sdunli ndsuli dnsuli nsduli snduli dsnuli sdnuli uldsni ludsni udlsni dulsni ldusni dlusni ulsdni lusdni usldni suldni lsudni sludni udslni duslni usdlni sudlni dsulni sdulni ldsuni dlsuni lsduni slduni dsluni sdluni nldsui lndsui ndlsui dnlsui ldnsui dlnsui nlsdui lnsdui nsldui snldui lsndui slndui ndslui dnslui nsdlui sndlui dsnlui sdnlui ldsnui dlsnui lsdnui sldnui dslnui sdlnui unidsl nuidsl uindsl iundsl niudsl inudsl undisl nudisl udnisl dunisl nduisl dnuisl uidnsl iudnsl udinsl duinsl idunsl diunsl nidusl indusl ndiusl dniusl idnusl dinusl unisdl nuisdl uinsdl iunsdl niusdl inusdl unsidl nusidl usnidl sunidl nsuidl snuidl uisndl iusndl usindl suindl isundl siundl nisudl insudl nsiudl sniudl isnudl sinudl undsil nudsil udnsil dunsil ndusil dnusil unsdil nusdil usndil sundil nsudil snudil udsnil dusnil usdnil sudnil dsunil sdunil ndsuil dnsuil nsduil snduil dsnuil sdnuil uidsnl iudsnl udisnl duisnl idusnl diusnl uisdnl iusdnl usidnl suidnl isudnl siudnl udsinl dusinl usdinl sudinl dsuinl sduinl idsunl disunl isdunl sidunl dsiunl sdiunl nidsul indsul ndisul dnisul idnsul dinsul nisdul insdul nsidul snidul isndul sindul ndsiul dnsiul nsdiul sndiul dsniul sdniul idsnul disnul isdnul sidnul dsinul sdinul ulidsn luidsn uildsn iuldsn liudsn iludsn uldisn ludisn udlisn dulisn lduisn dluisn uidlsn iudlsn udilsn duilsn idulsn diulsn lidusn ildusn ldiusn dliusn idlusn dilusn ulisdn luisdn uilsdn iulsdn liusdn ilusdn ulsidn lusidn uslidn sulidn lsuidn sluidn uisldn iusldn usildn suildn isuldn siuldn lisudn ilsudn lsiudn sliudn isludn siludn uldsin ludsin udlsin dulsin ldusin dlusin ulsdin lusdin usldin suldin lsudin sludin udslin duslin usdlin sudlin dsulin sdulin ldsuin dlsuin lsduin slduin dsluin sdluin uidsln iudsln udisln duisln idusln diusln uisdln iusdln usidln suidln isudln siudln udsiln dusiln usdiln sudiln dsuiln sduiln idsuln disuln isduln siduln dsiuln sdiuln lidsun ildsun ldisun dlisun idlsun dilsun lisdun ilsdun lsidun slidun isldun sildun ldsiun dlsiun lsdiun sldiun dsliun sdliun idslun dislun isdlun sidlun dsilun sdilun nlidsu lnidsu nildsu inldsu lindsu ilndsu nldisu lndisu ndlisu dnlisu ldnisu dlnisu nidlsu indlsu ndilsu dnilsu idnlsu dinlsu lidnsu ildnsu ldinsu dlinsu idlnsu dilnsu nlisdu lnisdu nilsdu inlsdu linsdu ilnsdu nlsidu lnsidu nslidu snlidu lsnidu slnidu nisldu insldu nsildu snildu isnldu sinldu lisndu ilsndu lsindu slindu islndu silndu nldsiu lndsiu ndlsiu dnlsiu ldnsiu dlnsiu nlsdiu lnsdiu nsldiu snldiu lsndiu slndiu ndsliu dnsliu nsdliu sndliu dsnliu sdnliu ldsniu dlsniu lsdniu sldniu dslniu sdlniu nidslu indslu ndislu dnislu idnslu dinslu nisdlu insdlu nsidlu snidlu isndlu sindlu ndsilu dnsilu nsdilu sndilu dsnilu sdnilu idsnlu disnlu isdnlu sidnlu dsinlu sdinlu lidsnu ildsnu ldisnu dlisnu idlsnu dilsnu lisdnu ilsdnu lsidnu slidnu isldnu sildnu ldsinu dlsinu lsdinu sldinu dslinu sdlinu idslnu dislnu isdlnu sidlnu dsilnu sdilnu
Note: these 'words' (valid or invalid) are all the permutations of the word unlids. These words are obtained by scrambling the letters in unlids.