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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

Bannon has called AI "the most dangerous technology in the history of mankind."

From Barron's • Jun. 2, 2026

Khvicha Kvaratskhelia, an explosive right-footed left winger is one of football's most dangerous players, and Arsenal will need to keep him quiet.

From BBC • May 30, 2026

"Clinical trials generally identify the most dangerous side effects of drugs," says Ungar.

From Science Daily • May 24, 2026

The expedition knew that they were facing one of their most dangerous and deadly foes of all: rapids.

From "Death on the River of Doubt" by Samantha Seiple