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.

Goldman Sachs’ research illustrates that while the stock market is closer to a dangerous bubble than it was a few months ago, an overall assessment of risk indicators is not that alarming.

From The Wall Street Journal • Jun. 8, 2026

It no longer controls the huge swathes of territory it once did, but it, and other splinter groups, remains active and dangerous.

From BBC • Jun. 7, 2026

Africa has 10 teams in the tournament, and Senegal and Morocco stand out as the most dangerous of the group.

From Los Angeles Times • Jun. 7, 2026

They point to climate change, aging water infrastructure, and weak monitoring systems as factors that could allow dangerous amoebae to spread and become harder to control.

From Science Daily • Jun. 6, 2026

It would be too dangerous to let him know I knew the truth about him.

From "Code Name Kingfisher" by Liz Kessler

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