mindless

But this association between the moon and trippy mindlessness would have seemed to Lewis to miss at least half the picture.

Terrified, he at last returns, with relief, to mindlessness.

Bethink you, have there not been days, aye and months, in your own life when you would have rejoiced to sleep in mindlessness?

Thereafter he slipped into perfect mindlessness, happy and harmless, but hopelessly mindless and vacant.