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.

Others have suggested that Anthropic’s warnings about the dangerous potential of its own tools could also be considered a marketing ploy.

From The Wall Street Journal • Jun. 4, 2026

The U-turn follows warnings by scientists that Fifa's heat safety measures for the tournament are "inadequate", with temperatures at 14 of the 16 host venues set to exceed dangerous levels.

From BBC • Jun. 4, 2026

He’s a 10-time Pro Bowl selection whose moon ball is one of the prettiest, most dangerous downfield passes in league history.

From Los Angeles Times • Jun. 4, 2026

Facebook recommendations from your “friends” are worthless if not dangerous.

From MarketWatch • Jun. 3, 2026

"You certainly did. We all need to be reminded about how dangerous fire can be, right?"

From "All About Sam" by Lois Lowry

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