1) Adrift 2) Afloat 3) Aimless 4) Desultory 5) Directionless 6) Having no aim or goal 7) Having no excuse for being 8) Meaningless 9) Nonmeaningful 10) Planless 11) Rudderless 12) Serving no useful purpose 13) Undirected Found on https://www.crosswordclues.com/clue/purposeless