If you are undaunted, you are not at all afraid or worried about dealing with something, especially something that would frighten or worry most people.
例句
Undaunted by the scale of the job, Lesley set about planning how each room should look.萊斯利并沒有被這項浩大的工程所嚇倒，開始著手規劃每個房間的格局。
英漢詞典釋義
adj.
頑強的;不懼怕的;無畏的
The commander bade his men be undaunted in the face of perils.指揮員命令他的戰士要臨危不懼。
英英詞典釋義
Adjective
1. unshaken in purpose;
"wholly undismayed by the commercial failure of the three movies he had made"