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most dangerous

ADJECTIVE

hazardous, troubling

Synonyms

STRONGEST

alarming bad critical deadly fatal nasty perilous precarious risky serious terrible threatening treacherous ugly unhealthy unsafe unstable

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.

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

His mother, whom J. Edgar Hoover would call “the most dangerous woman in America,” was born into a middle-class home and grew up in a suburb north of Milwaukee.

From The Wall Street Journal • May 29, 2026

The most dangerous words in investing are “This time it’s different,” warned celebrated fund manager John Templeton.

From Barron's • May 27, 2026

"Melanoma, the most dangerous skin cancer, is now the fifth commonest cancer in the UK."

From BBC • May 26, 2026

Graham called Holmes “the most dangerous man in the world.”

From "The Devil in the White City" by Erik Larson