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 © …

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

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

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.

Learn the meaning of Hazardous in English, including definitions, examples, translations, and interesting facts. Explore how Hazardous is used in different contexts with finesentence.com.

Hazardous refers to anything that presents a potential source of danger, harm, or risk to the health, safety, or environment. This could involve objects, substances, activities, or situations that could …

Nov 24, 2025 · The term “hazardous” is often used to describe substances or situations that pose a threat to health, safety, or the environment. However, understanding what constitutes hazardous …

hazardous, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary