An intrepid person acts in a brave way. an intrepid space traveller. = fearless. willing to do dangerous things or go to dangerous places - often used humorously (intrepidus, from trepidus )
Not trembling or shaking with fear; fearless; bold; brave; undaunted; courageous; as, an intrepid soldier; intrepid spirit
invulnerable to fear or intimidation; "audacious explorers"; "fearless reporters and photographers"; "intrepid pioneers"