without purpose

The theme of the book: “Drive without purpose leads inevitably to destruction” certainly has its applications in today's world.

He was like a primeval cell, floating without origin, without purpose, without destination.

Nor is your use of this "light literature of the infant scholar" in the nursery without purpose or value.

He strolled on without purpose, but mechanically, into the street where he had first seen Helen.

For instance, four huge attachments puzzled him immensely, for they hung from the framework and seemed without purpose.

There its legs kicked and heaved violently but without purpose.