Causing danger; ready to do harm or injury.

In a condition of danger, as from illness; threatened with death.

involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"

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"

Being able or likely to do harm.

Something that is potentially harmful or risky.

Dangerous is a 1935 drama film starring Bette Davis as an alcoholic actress who has fallen on hard times and is helped back to her feet by a fan (Franchot Tone), whose own engagement is threatened by his relationship with the actress. The film also stars Margaret Lindsay, Alison Skipworth, John Eldredge and Dick Foran.

Dangerous is an Australian television drama series broadcast on subscription television.