a. Incapable of being daunted; undaunted; bold; fearless; intrepid. [ 1913 Webster ]
Dauntless he rose, and to the fight returned. Dryden.
-- Daunt"less*ly, adv. -- Daunt"less*ness, n. [ 1913 Webster ]
n. resolute courageousness. Syn. -- intrepidity. [ WordNet 1.5 ]