Synonyms for Undaunted (same or very similar meaning)
WordNet sense 1 (unshaken in purpose):
undismayed, unshaken
WordNet sense 2 (firm in purpose or belief; characterized by firmness and determination):
resolute
WordNet sense 3 (possessing or displaying courage; able to face and deal with danger or fear without flinching):
brave, courageous
From the ODE community, based on WordNet
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