idler diler ilder lider dlier ldier idelr dielr iedlr eidlr deilr edilr iledr liedr ieldr eildr leidr elidr dleir ldeir delir edlir ledir eldir idlre dilre ildre lidre dlire ldire idrle dirle irdle ridle drile rdile ilrde lirde irlde rilde lride rlide dlrie ldrie drlie rdlie lrdie rldie iderl dierl iedrl eidrl deirl edirl idrel direl irdel ridel driel rdiel ierdl eirdl iredl riedl eridl reidl deril edril dreil rdeil erdil redil ilerd lierd ielrd eilrd leird elird ilred lired irled riled lried rlied ierld eirld ireld rield erild reild lerid elrid lreid rleid erlid relid dleri lderi delri edlri ledri eldri dlrei ldrei drlei rdlei lrdei rldei derli edrli dreli rdeli erdli redli lerdi elrdi lredi rledi erldi reldi
Note: these 'words' (valid or invalid) are all the permutations of the word idler. These words are obtained by scrambling the letters in idler.