'Hazardous' definitions:

Definition of 'hazardous'

From: WordNet
adjective
Involving risk or danger; "skydiving is a hazardous sport"; "extremely risky going out in the tide and fog"; "a wild financial scheme" [syn: hazardous, risky, wild]

Definition of 'Hazardous'

From: GCIDE
  • 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]