dangerous, hazardous, precarious, perilous, risky mean bringing or involving the chance of loss or injury. dangerous applies to something that may cause harm or loss unless dealt with carefully.

Add to word list dangerous and involving risk, especially to someone's health: hazardous industries / materials / substances (Definition of hazardous from the Cambridge Business English Dictionary © …

A hazard pictogram to indicate a hazard from a flammable substance. A hazard is a potential source of harm. Substances, events, or circumstances can constitute hazards when their nature would …

HAZARDOUS definition: full of risk; perilous; risky. See examples of hazardous used in a sentence.

1. to risk; to be prepared to do (something, the result of which is uncertain).

Something that is hazardous is dangerous, especially to people's health or safety. They have no way to dispose of the hazardous waste they produce. Passive smoking can be hazardous to health.

Definition of hazardous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

6 days ago · Defining Hazardous Substances for Environmental Cleanup When a material is released or threatens to be released into the environment, the definition of a hazardous substance is established …

hazardous (adjective) hazardous / ˈ hæzɚdəs/ adjective Britannica Dictionary definition of HAZARDOUS [more hazardous; most hazardous] : involving risk or danger : dangerous

The noun "hazard" means something dangerous, and the adjective hazardous refers to anything that involves danger. A golf course with lots of sand traps is especially hazardous for golfers.