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Definitions

hazardous

[haz-er-duhs] / ˈhæz ər dəs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The memoir of a former New York City subway motorman details his hazardous workdays below the streets.

From The Wall Street Journal • Apr. 10, 2026

Abruptly capping wells is geologically hazardous: sudden pressure drops clog wellbores with heavy waxes.

From The Wall Street Journal • Apr. 8, 2026

Many roads were blocked by trees overnight or restricted due to hazardous conditions, including the A8, A87 and A83.

From BBC • Apr. 5, 2026

The landmark 56-year-old state law has been credited with helping to preserve California’s natural beauty and protecting communities from hazardous impacts of construction projects — but also blamed for stymieing construction.

From Los Angeles Times • Mar. 23, 2026

It is difficult, even hazardous work, requiring special suits and involving chemicals with high pH levels.

From "Shipwrecked!" by Martin W. Sandler




Vocabulary lists containing hazardous