Source : Webster's Revised Unabridged Dictionary (1913)

Aimless \Aim"less\, a.
   Without aim or purpose; as, an aimless life. --
   {Aim"less*ly}, adv. -- {Aim"less*ness}, n.

Source : WordNet®

aimless
     adj 1: aimlessly drifting [syn: {adrift(p)}, {afloat(p)}, {directionless},
             {planless}, {rudderless}, {undirected}]
     2: continually changing especially as from one abode or
        occupation to another; "a drifting double-dealer"; "the
        floating population"; "vagrant hippies of the sixties"
        [syn: {drifting}, {floating}, {vagabond}, {vagrant}]