undaunted

adjective

1. undismayed; not discouraged; not forced to abandon purpose or effort: undaunted by failure.
2. undiminished in courage or valor; not giving way to fear; intrepid: Although outnumbered, he was undaunted.

adjective

1. not put off, discouraged, or beaten

adj.mid-15c., with reference to horses, “untamed, not broken in,” from un- (1) “not” + past participle of daunt (v.). In reference to persons, meaning “intrepid” is recorded from 1580s.