fearless

adjective
UK /ˈfɪələs/
US /ˈfɪrləs/

Not scared of anything.

The fearless firefighter ran into the burning building.


OTHER MEANINGS

2. Showing no fear in a dangerous situation.

She gave a fearless speech in front of the whole school.

3. Very confident and willing to take risks.

His fearless style of play made him a star.

4. Without worry or hesitation.

The fearless explorer sailed into unknown waters.