Source : Webster's Revised Unabridged Dictionary (1913)

Venturesome \Ven"ture*some\, a.
   Inclined to venture; not loth to run risk or danger;
   venturous; bold; daring; adventurous; as, a venturesome boy
   or act. -- {Ven"ture*some*ly}, adv. -- {Ven"ture*some*ness},
   n.

Source : WordNet®

venturesome
     adj 1: involving risk or danger; "skydiving is a hazardous sport";
            "extremely risky going out in the tide and fog"; "a
            venturesome journey in wintertime"; "a venturous
            enterprise" [syn: {hazardous}, {risky}, {venturous}]
     2: willing to try new things and take risks; "there is a new
        venturesome spirit among young people today"
     3: disposed to venture or take risks; "audacious visions of the
        total conquest of space"; "an audacious interpretation of
        two Jacobean dramas"; "the most daring of contemporary
        fiction writers"; "a venturesome investor"; "a venturous
        spirit" [syn: {audacious}, {daring}, {venturous}]