mindless

adjective
mind·​less | \ ˈmīn(d)-ləs How to pronounce mindless (audio) \

Definition of mindless

1a : marked by a lack of mind or consciousness a mindless sleep
b(1) : marked by or displaying no use of the powers of the intellect mindless violence
(2) : requiring little attention or thought especially : not intellectually challenging or stimulating mindless work a mindless movie
2 : not mindful : heedless mindless of the consequences