not to be daunted or intimidated; fearless; intrepid; bold

a dauntless hero.

( initial capital letter ) Also called Douglas SBD. the principal U.S. Navy fleet bomber of early World War II, capable of carrying bombs or depth charges and particularly successful as a dive bomber.

adjective

afraid , daunted , discouraged , disheartened , fearful , frightened , intimidated , scared , terrified

adjective

aweless , brave , daring , doughty , fearless , gallant , game , heroic , indomitable , intrepid , invincible , lionhearted , resolute , stouthearted , unafraid , unconquerable , undaunted , unfearing , unflinching , valiant , valorous , audacious , bold , courageous , fortitudinous , hardy , mettlesome , plucky , stout