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Definition of hazardous

hazardous

/ˈhæz.ɚ.dəs/
haz · ard · ous
Adverb:hazardously
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hazardous Lexical Profile

hazardous Game Scores & Validity

• adjective

1

Involving or exposing one to a high degree of danger, risk, or potential harm, especially to human health, physical safety, or the environment.

Example

"The laboratory staff wore protective gear while disposing of the hazardous chemical waste."

2

Dependent on chance or uncertain outcomes; involving significant financial or strategic risk.

Example

"Launching a retail business without sufficient market research proved to be a hazardous venture."

Synonyms
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Antonyms
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• Rhymes for hazardous

• Nearby Words

haystack
haywire
hazard
hazardous
hazardously
hazardousness
haze

Word Origin & Etymology

Borrowed from Middle French 'hasardeux' in the late 16th century, derived from 'hasard' (a game of dice), which likely traces back to Arabic 'az-zahr', meaning 'the gaming die'.

Cite this Entry

Wordmom. (2026). Definition of Hazardous. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/hazardous
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