| a. | 1. | Attended or beset with danger; full of risk; perilous; hazardous; unsafe. |
| 2. | Causing danger; ready to do harm or injury. | |
| 3. | In a condition of danger, as from illness; threatened with death. | |
| 4. | Hard to suit; difficult to please. | |
| 5. | Reserved; not affable. |
| Adj. | 1. | dangerous - involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions" Synonyms: unsafe Antonyms: safe - free from danger or the risk of harm; "a safe trip"; "you will be safe here"; "a safe place"; "a safe bet" |
| 2. | dangerous - 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" |