unlit nulit ulnit lunit nluit lnuit unilt nuilt uinlt iunlt niult inult ulint luint uilnt iulnt liunt ilunt nliut lniut nilut inlut linut ilnut unlti nulti ulnti lunti nluti lnuti untli nutli utnli tunli ntuli tnuli ultni lutni utlni tulni ltuni tluni nltui lntui ntlui tnlui ltnui tlnui unitl nuitl uintl iuntl niutl inutl until nutil utnil tunil ntuil tnuil uitnl iutnl utinl tuinl itunl tiunl nitul intul ntiul tniul itnul tinul ulitn luitn uiltn iultn liutn ilutn ultin lutin utlin tulin ltuin tluin uitln iutln utiln tuiln ituln tiuln litun iltun ltiun tliun itlun tilun nlitu lnitu niltu inltu lintu ilntu nltiu lntiu ntliu tnliu ltniu tlniu nitlu intlu ntilu tnilu itnlu tinlu litnu iltnu ltinu tlinu itlnu tilnu
Note: these 'words' (valid or invalid) are all the permutations of the word unlit. These words are obtained by scrambling the letters in unlit.