intrepid
3.audacious explorers; fearless reporters and photographers; intrepid pioneers.
5.A few intrepid explorers stake out some new, unexplored territory.
8.Lately, though, an intrepid band of researchers has been trying to remedy that.
9.The most intrepid veteran dares no more thann wipe his face with his cambric sudarium.
10.I never heard him speak about his voyages, which were, it seemed, numerous and intrepid.
