dauntless
AdjectiveWordNet 3.0
Webster's Dictionary (GCIDE)
dauntless \daunt"less\, 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]