Dangerous
Menacing
Synonyms Menacing, treacherous, wild, murderous, minacious, threatening, savage, vicious, and desperate.
Hazardous
Synonyms Hazardous, risky, fraught with danger, uncertain, precarious, exposed, touch-and-go, tricky, breakneck, daredevil, warm, sticky, dodgy, perilous, high-risk, unsafe, unpredictable, insecure, vulnerable, chancy, treacherous, reckless, unchancy, dicey, hairy, and gnarly.
Example Sentences
Driving recklessly is extremely dangerous.
That animal looks very dangerous.
Climbing without gear is dangerous.
Smoking is dangerous to health.
