Adjective dangerous has 2 senses
- dangerous, unsafe - involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"
Antonyms: safe, fail-safe, harmless, innocuous, off the hook, risk-free, riskless, unhazardous, safe and sound, unhurt
- dangerous, grave, grievous, serious, severe, life-threatening - causing fear or anxiety by threatening great harm; "a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"; "a life-threatening disease"
Antonyms: noncritical, noncrucial (indirect, via critical)
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