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.

But a smaller group behaves in a very different way, and their actions can be far more dangerous.

From Science Daily • Apr. 17, 2026

How Anthropic learned that Mythos was too dangerous for the wild.

From MarketWatch • Apr. 17, 2026

Consumer groups say that, as well as fakes, some dangerous items – ranging from balloons to chargers – are being sold through online marketplaces or social media.

From BBC • Apr. 15, 2026

“The allegations being circulated on social media by Ruby Rose about Katy Perry are not only categorically false, they are dangerous reckless lies,” Perry’s rep said.

From Los Angeles Times • Apr. 15, 2026

But even though Mama was right there, the space between us felt awfully wide, and getting across it seemed like a dangerous venture.

From "Ida B" by Katherine Hannigan

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