From Middle French hasardeux.
hazardous (comparative more hazardous, superlative most hazardous)
- Risky; dangerous; with the nature of a hazard.
2014 June 14, “It's a gas”, in The Economist, volume 411, number 8891:
But out of sight is out of mind. And that […] means that many old sewers have been neglected and are in dire need of repair. If that repair does not come in time, the result is noxious and potentially hazardous.
- Of or involving chance.
risky, dangerous, with the nature of a hazard
One of four common words ending in -dous, which are hazardous, horrendous, stupendous, and tremendous.
- ^ The Word Circus: A Letter-perfect Book, by Richard Lederer, Dave Morice, 1998, p. 229