lustless adjective2 •Without sexual lust.By Mahomet, my Kinsmans sepulcher, And by the holy Alcaron I sweare, He shall be made a chaste and lustlesse Eunuch, And in my Sarell tend my Concubines: — 1587 •(no longer used) Lacking vigour; weak, tame or spiritless.Seemeth thy flocke thy counsell can, So lustlesse bene they, so weake so wan, — 1579 formsmore lustless · most lustless