vacuous

A sudden animation replaced the vacuous stare of the blue eyes.

In less than a fortnight he had fallen to vacuous imbecility.

Those eyes were the shiny, vacuous, soulless eyes of a madman!

He was slouching along with his hands in his pockets, and a vacuous look in his face.

Again a wait, while they looked at one another with vacuous eyes.

“The sooner, the quicker,” Tubbs answered, with his vacuous wit.

With the closing of the door the vacuous look slipped from his face like a mask.

He was delighted to find that, after weeks of vacuous worry, he had another idea.

They have persecuted the believers, jeered at them, or damned them with a vacuous smile.

Did they move as dead men among the living, devitalised, vacuous calm?