ADJ-GRADED [verb-link ADJ]不害怕的；不气馁的；不沮丧的 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. 不害怕的；不气馁的；不沮丧的 [formal]
He was undismayed by the prospect of failure. [+ by]