英汉词典

1. 使震惊;使目瞪口呆;使惊愕
    If you are stunned by something, you are extremely shocked or surprised by it and are therefore unable to speak or do anything.

stun的反义词

    e.g. Many cinema-goers were stunned by the film's violent and tragic end.
           许多来看电影的人都被这部影片暴力而悲惨的结局所震惊。