approval If you say that someone is fearless, you mean that they are not afraid at all, and you admire them for this. his fearless campaigning for racial justice. not afraid of anything
possessing or displaying courage; able to face and deal with danger or fear without flinching; "Familiarity with danger makes a brave man braver but less daring"- Herman Melville; "a frank courageous heart triumphed over pain"- William Wordsworth; "set a courageous example by leading them safely into and out of enemy-held territory"
invulnerable to fear or intimidation; "audacious explorers"; "fearless reporters and photographers"; "intrepid pioneers"