undismayed /ˌʌndɪsˈmeɪd/

• 1.  

  ADJ（形容词） If you say that someone is undismayed by something unpleasant or unexpected, you mean that they do not feel any fear, worry, or sadness about it. 毫不畏惧的 [正式][v-link ADJ]

  例：

  He was undismayed by the prospect of failure.

  他对可能的失败毫不畏惧。