dangerous

[deyn-jer-uhs, deynj-ruhs] / ˈdeɪn dʒər əs, ˈdeɪndʒ rəs /

ADJECTIVE

hazardous, troubling

Synonyms

STRONGEST

alarming bad critical deadly fatal nasty perilous precarious risky serious terrible threatening treacherous ugly unhealthy unsafe unstable

STRONG

no-go

WEAK

breakneck chancy dangersome delicate dynamite exposed formidable hairy heavy hot impending impregnable insecure jeopardous loaded malignant menacing mortal on collision course parlous portentous pressing queasy serpentine shaky speculative thorny ticklish touch-and-go touchy urgent viperous vulnerable wicked

Antonyms

STRONGEST

OK agreeable certain good great happy harmless healthful healthy honest kind nice pleasant pleasing safe secure stable strong sure trivial true unimportant wholesome wonderful

WEAK

careful guarded unhazardous untroubled

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.

Scientists say the need for broader vaccine protection remains urgent because many potentially dangerous viruses continue to circulate in animals around the world.

From Science Daily • Jun. 5, 2026

It is also economically inefficient, and it is politically dangerous.

From MarketWatch • Jun. 5, 2026

During its visit to the QEUH, Healthcare Improvement Scotland heard from staff who described their working conditions as "unsafe" or "dangerous" at times, as part of incident reports.

From BBC • Jun. 4, 2026

Anthropic’s leaders, including Chief Executive Dario Amodei, have warned about the potential for dangerous impacts from AI for years and sought widespread societal collaboration to address risks.

From The Wall Street Journal • Jun. 4, 2026

Jones said war was coming, and traveling to Southeast Asia would be dangerous.

From "At Last She Stood" by Erin Entrada Kelly

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