fearless(free from fear) adjective [UK: ˈfɪə.ləs] [US: ˈfɪr.ləs]
intrepid(fearless) adjective [UK: ɪn.ˈtre.pɪd] [US: ˌɪn.ˈtre.pəd]Many tried to carry out the deed of the intrepid mountaineer. = Muchos intentaron realizar la hazaña del intrépido alpinista.