Definitions

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.

Is it actually dangerous for kids, or a scapegoat for a larger problem?

From Slate • May 17, 2026

"My anxiety is, decent people start believing these lies, this dystopian image of London being in decline, that we're a dangerous city, that there is no law and order," he said.

From BBC • May 15, 2026

In my 30 years’ experience in markets—less discreetly focused on oil markets than some of the others here—that has been a dangerous tactic.

From Barron's • May 15, 2026

The dangerous sea conditions could capsize or damage both small and large vessels, the weather service warned.

From Los Angeles Times • May 15, 2026

The biggest, most dangerous thing I’ve ever done.

From "Code Name Kingfisher" by Liz Kessler

Vocabulary lists containing dangerous

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