|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"|
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"|