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.

In the summer of 2022, Anthropic decided not to release an early version of its Claude chatbot after employees objected, fearing it would start a dangerous technology race.

From The Wall Street Journal • May 13, 2026

Here’s why he ruled against Maddin: Gorsuch looked at that statute that protects workers when they are in conditions they deem dangerous.

From Slate • May 13, 2026

Senescent cells appear to survive by producing unusually high levels of GPX4 to counteract the dangerous conditions inside the cell.

From Science Daily • May 13, 2026

Streeting said "dangerous misinformation dressed up as expert advice... must stop" and that parents should "only rely on trusted, evidence-based information" like the NHS Best Start in Life website.

From BBC • May 12, 2026

Eventually she becomes at ease, convinced, at least enough, that me sitting in her seat hasn’t caused me to behave in any abnormal or dangerous ways, and that I don’t plan to ransack her workstation.

From "The Brightwood Code" by Monica Hesse

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