1) Brave 2) Courageous 3) Fearless 4) Resolute 5) Stout 6) Unblenched 7) Undismayed 8) Undisturbed 9) Unshaken 1) Like the mississippi 2) Not discouraged 3) Not giving way to fear 4) Not intimidated 5) Resolute 6) Resolutely courageous 7) Undismayed 8) Unshaken 9) Unshaken in purpose 
• (a.) Not daunted; not subdued or depressed by fear.
HMS Undaunted was a British Ulster Class destroyer of 1710 tons displacement launched in 1943. HMS Undaunted was powered by two Admiralty 3-drum type boilers providing a top speed of 34 knots. She was armed with four 4.7 inch guns; four 40 mm anti-aircraft guns; four 20 mm anti-aircraft guns and eight 21 inch torpedo tubes arranged in two quads.
[adj] - unshaken in purpose 2. [adj] - resolutely courageous
undaunted 1. Not discouraged or disheartened; resolutely courageous; unshaken in purpose. 2. Not afraid or deterred by the prospect of defeat, loss, or failure; resolutely courageous.
undismayed adjective unshaken in purpose; `wholly undismayed by the commercial failure of the three movies he had made`
undismayed; not discouraged; not forced to abandon purpose or effort: undaunted by failure. · undiminished in courage or valor; not giving way to fear; intrepid: Although outnumbered, he was undaunted.
[SAT terms] resolutely courageous