vacuous

That vacuous content which engrosses the body after long indisposition, held her imperatively.

But they were nowhere to be seen; the faces were stolid, or indifferent, or intent, or vacuous.

He was in his ghostly incognito, for he always traveled lightly in vacuous and doubtful regions.

The counsel of the vacuous Mr. Fopling followed him to ring in his ears like words of guidance.

Vacuous refers to the condition of being empty or vacant, regarded as continuous or characteristic.