dangerous dangerous

adj

() involving or causing danger or risk; liable to hurt or harm  ( unsafe, dangerous )
involving or causing danger or risk; liable to hurt or harm
 a dangerous criminal
a dangerous criminal
 a dangerous bridge
a dangerous bridge
 unemployment reached dangerous proportions
unemployment reached dangerous proportions

() causing fear or anxiety by threatening great harm  ( life-threatening, dangerous, grievous, severe, grave, serious )
causing fear or anxiety by threatening great harm
 a dangerous operation
a dangerous operation
 a grave situation
a grave situation
 a grave illness
a grave illness
 grievous bodily harm
grievous bodily harm
 a serious wound
a serious wound
 a serious turn of events
a serious turn of events
 a severe case of pneumonia
a severe case of pneumonia
 a life-threatening disease
a life-threatening disease