mindless

adjective

1. 1

   requiring little mental effort

   mindless tasks

2. 2

   lacking the thinking capacity characteristic of a conscious being

   the shrieking of the mindless wind

3. 3

   not marked by the use of reason

   mindless violence

   reasonless hostility

4. 4

   not mindful or attentive

   while thus unmindful of his steps he stumbled"- G.B.Shaw

5. 5

   devoid of intelligence