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 Dressel wants to hold Bayer accountable and for the company to admit that it marketed a potentially dangerous product.

From The Wall Street Journal • Apr. 20, 2026

The campaign, which made Bukele hugely popular, has resulted in a dramatic decrease in crime, turning El Salvador from one of Latin America's most dangerous countries to one of its safest.

From Barron's • Apr. 20, 2026

And data analyses by ProPublica showed that sepsis rates and blood transfusions spiked among miscarrying women after the ban went into effect — an indicator of dangerous delays in care across the state.

From Salon • Apr. 20, 2026

He warned that if Iran refused to relinquish its control of these international waters it would set a "dangerous precedent" for other strategic waterways in the world.

From BBC • Apr. 19, 2026

Just as everyone was finally—finally!—agreeing that the mountain was dangerous, it seemed to retreat to safety.

From "Mountain of Fire" by Rebecca E. F. Barone

Vocabulary lists containing dangerous

Words Every Pirate Should Know

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

"Volcano!"

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

"Brothers in Hope"

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!