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.莱斯利并没有被这项浩大的工程所吓倒，开始着手规划每个房间的格局。
英汉词典释义
adj.
顽强的;不惧怕的;无畏的
The commander bade his men be undaunted in the face of perils.指挥员命令他的战士要临危不惧。
英英词典释义
Adjective
1. unshaken in purpose;
"wholly undismayed by the commercial failure of the three movies he had made"