hazardous
adjUS /ˈhæ.zɚ.dɪs/
Etymology From Middle French hasardeux, equivalent to hazard + -ous.
1
Risky; dangerous; with the nature of a hazard.
- 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.2014 June 14, “It's a gas”, in The Economist, volume 411, number 8891:
2
Rare Of or involving chance.
- Antonyms
- non-hazardous, nonhazardous