Find Synonyms

hazardous Synonyms

Another word for hazardous

Choosing another word for hazardous depends on context, so the 13 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

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

Usage Example

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

Strongest
dangerous
perilous
unsafe
Strong
risky
harmful
precarious
treacherous
toxic

• adjective (Context 2)

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

Usage Example

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

Strongest
risky
Strong
speculative
uncertain
chancy
dicey
unpredictable

Opposites of hazardous

The opposite of hazardous shifts depending on context. Common opposites include:

safe
harmless
certain
sure
risk-free
secure
benign
predictable
See all opposites of hazardous

• Nearby Words

haystack
haywire
hazard
hazardous
hazardously
hazardousness
haze

Cite this Entry

Wordmom. (2026). Synonyms for Hazardous. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/hazardous
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