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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.

He’s a 10-time Pro Bowl selection whose moon ball is one of the prettiest, most dangerous downfield passes in league history.

From Los Angeles Times • Jun. 4, 2026

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

From Barron's • Jun. 2, 2026

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

From Science Daily • May 24, 2026

Rice has emerged as a star this season, partnering with Aaron Judge to form the most dangerous power duo in baseball.

From The Wall Street Journal • May 21, 2026

Oleg Gordievsky's career as a double agent had landed him right in the middle of one of the most dangerous standoffs of the Cold War—and into scalding-hot water with the KGB.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau