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.

They are also leaky at the back - and that is a dangerous combination for all the wrong reasons.

From BBC • Apr. 18, 2026

Moving forward, Hultquist is concerned that more aggressive and dangerous actors will mass exploitation campaigns involving ransomware and extortion.

From MarketWatch • Apr. 18, 2026

That turned out to be a dangerous premise.

From The Wall Street Journal • Apr. 17, 2026

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

From Science Daily • Apr. 17, 2026

Nim loved the ocean because it was always there, wherever she looked and as far as she could see, but it was too huge and powerful to understand and too dangerous to trust.

From "Nim’s Island" by Wendy Orr

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