be stunned by something

She just sat there, stunned by the speed with which he had moved.

Most of the task force sat there, stunned by the news.

He stood there, stunned by the impact of his recognition.

Despite all that, they now stood around as if stunned by a hard blow to the face.

He half turned his head, looking up at her, stunned by the force of the blow, yet still alive.

For a moment she gasped, stunned by the cold of it.

She stood, stunned by the fact that her dreams had all at once become reality.

He stopped short, stunned by the vista that opened up before him.

Only then did he sit back, stunned by the import of the message.

I asked, still stunned by the unexpected news of Douglas's death.