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 warn that intensified melting inside the channels could create a dangerous feedback effect.

From Science Daily • May 10, 2026

Authorities have long tried to discourage the illegal celebrations, which can prove dangerous.

From Los Angeles Times • May 9, 2026

Could dangerous weather impact the Fifa World Cup this summer?

From BBC • May 9, 2026

If you’re positive it is—or isn’t—a bubble, that could be even more dangerous.

From The Wall Street Journal • May 8, 2026

This was, some might say, a foolish and dangerous promise to make to any living thing, given the chaotic unpredictability of the world.

From "Impossible Creatures" by Katherine Rundell

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