fearless

Fearless, a.

Free from fear.

Syn. -- Bold; courageous; interpid; valor -- Fear"less*ly, adv. -- Fera"less*ness, n.

Shades of meaning

Fernald has no entry of its own for fearless; he lists it under brave.

Where he writes about it:

The fearless and intrepid possess unshaken nerves in any place of danger. — from brave