hazardousness n 1: the state of being dangerous [syn: {hazardousness}, {perilousness}]
Hazardous \Haz"ard*ous\ (-[u^]s), a. [Cf. F. hasardeux.] Exposed to hazard; dangerous; risky. [1913 Webster] To enterprise so hazardous and high! --Milton. Syn: Perilous; dangerous; bold; daring; adventurous; venturesome; precarious; uncertain. -- {Haz"ard*ous*ly}, adv. -- {Haz"ard*ous*ness}, n. [1913 Webster]
hazardousness \haz"ard*ous*ness\ n. the state of being dangerous. Syn: perilousness, precariousness, danger. [WordNet 1.5]