Purposeless

The most difficult crime to track is the one which is purposeless.

It's important to live with a sense of intention instead of purposeless habit.

As soon as I arrived I made an attempt to find my host, but the two or three people of whom I asked his whereabouts stared at me in such an amazed way, and denied so vehemently any knowledge of his movements, that I slunk off in the direction of the cocktail table—the only place in the garden where a single man could linger without looking purposeless and alone.

It's purposeless to rank people by their ability to memorize.

Turbulence was everywhere, within every blade of grass, every drop of dew on a leaf, every cloud in the sky, and every star beyond. The turbulence was purposeless, but in huge quantities of purposeless turbulence, purpose took shape.