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

"They are not particularly dangerous, you're not at risk of hurting yourself or anyone else. My convulsions are very rare, I have maybe three or four a year, they don't massively impact my life."

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

Spun with magic that Red insisted was dangerous.

From "Rump: The (Fairly) True Story of Rumpelstilskin" by Liesl Shurtliff

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