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.

“Oil shocks became dangerous when they collided with macro and financial stress already in place,” they wrote.

From MarketWatch • May 22, 2026

His stand draws a steady flow of tourists, campaigning politicians, nightlife denizens—and an alarming amount of dangerous intrigue.

From The Wall Street Journal • May 22, 2026

Rather than viewing all senescent cells as dangerous, researchers increasingly believe the future of anti-aging medicine may depend on distinguishing harmful cells from beneficial ones.

From Science Daily • May 22, 2026

Although the winds weren’t as fierce as during the Santa Ana events sometimes seen in the fall, they combined with extremely dry fuels to create a dangerous situation, he said.

From Los Angeles Times • May 20, 2026

“These are dangerous days, and not to be trodden lightly.”

From "Impossible Creatures" by Katherine Rundell

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