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.

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).

Aug 7, 2023 · “Hazardous” refers to something that poses a threat or danger to human health, the environment, or property. It can describe substances, activities, situations, or conditions that can …

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 © …

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.

hazardous - WordReference English dictionary, questions, discussion and forums. All Free.

Jan 14, 2026 · Adjective hazardous (comparative more hazardous, superlative most hazardous) Risky; dangerous; with the nature of a hazard.

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 …