Merriam-Webster Dictionary:
1 : exposing to or involving danger <a dangerous job>
2 : able or likely to inflict injury or harm <a dangerous man>
New Oxford American Dictionary
able or likely to cause harm or injury : a dangerous animal | ice was making the roads dangerous.
• likely to have adverse or unfortunate consequences; risky : it is dangerous to underestimate an enemy.
• likely to cause problems or difficulty : our most dangerous opponents in the playoffs.
• (of a drug) addictive or otherwise harmful or illegal.
Wiktionary:
dangerous (more dangerous, most dangerous)
full of danger
The Free Dictionary:
1. Involving or filled with danger; perilous.
2. Being able or likely to do harm.
YourDictionary.com
full of danger; likely to cause injury, pain, etc.; unsafe; perilous
UrbanDictionary
cool and sexy , but in an almost rebel kind of way, James Dean rebel, not Tommy Lee rebel.
What is your definition of dangerous?
1.Something that might cause harm.
2. Something Society Fears (Satan, Foreign Countries, Sex, Jason, Marilyn Manson, etc.)