Definition

Something that can cause harm or danger to people, animals, or the environment.

Example

The factory was closed because it was found to be producing hazardous waste.

Conversation

Did you hear about that new hiking trail?

Yeah, I heard it can be quite hazardous if you're not careful.

Exactly! I think I’ll stick to the easier paths for now.

Smart choice! Safety first, especially on hazardous trails.

Synonyms & Antonyms

Root Explanation

Hazardous → It is formed from "hazard" (from Old French *hasard*, meaning chance or risk) and the suffix "-ous" (meaning full of). The word "hazardous" means full of risk or danger.

Memory Tip

Think of 'hazard' as representing 'risk' and remember that 'hazardous' means full of risk or danger.

Visually Confused Words