reckless or malicious behavior that causes discomfort or annoyance in others
source: wordnet30
2
the quality or nature of being harmful or evil
source: wordnet30
3
Harm; damage; esp., disarrangement of order; trouble or vexation caused by human agency or by some living being, intentionally or not; often, calamity, mishap; trivial evil caused by thoughtlessness, or in sport.
