Hazardous

//ˈhæ.zɚ.dɪs// adj

adj ·Uncommon ·College level

Definitions

Adjective
  1. 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."

  2. 2
    Of or involving chance. rare
Adjective
  1. 1
    involving risk or danger wordnet

Synonyms

All synonyms
dangerousacuteadventuresomeadventurousaleatoryawkward

Example

More examples

"Too much drinking may be hazardous to your health."

Etymology

From Middle French hasardeux, equivalent to hazard + -ous.

Related phrases

hazardous materialpotentially hazardous object

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.