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.

But assuming a wealthy, nuclear superpower that’s “declining but dangerous” will simply flame out is equally dangerous.

From Salon • May 14, 2026

Powerful solar activity can create stunning auroras on Earth, but outside the protection of our planet's magnetic field, the Sun can become extremely dangerous.

From Science Daily • May 14, 2026

Kouri Richins was found guilty of murder in March, and Judge Richard Mrazik ruled the mother of three is "too dangerous to ever be free," the Salt Lake City Tribune reported.

From Barron's • May 14, 2026

Still chasing and knowing all the while that one slip of their own against Jens Berthel Askou's impressive and dangerous side and it could be curtains.

From BBC • May 13, 2026

This old woman looked as if she could do far more dangerous things than that.

From "Wolf Brother" by Michelle Paver

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