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.

“These are very real and dangerous clinical implications for the hundreds of thousands of women experiencing miscarriages annually.”

From Salon • May 26, 2026

"It was dangerous cancer that I'd already been left with for longer than I should have been," she said.

From BBC • May 26, 2026

Scientists believe carefully adjusting HELZ2 activity could eventually help reduce dangerous cholesterol levels while also offering new strategies for treating fatty liver disease.

From Science Daily • May 25, 2026

Walking and typing is dangerous, but walking and talking like a maniac into my own recorder is merely antisocial.

From Slate • May 24, 2026

She wouldn’t be able to see out, and it was more dangerous to sit near the window than the aisle.

From "Storm Runners" by Roland Smith

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