islam IS the definition of evil
e·vil (vl)adj. e·vil·er, e·vil·est 1. Morally bad or wrong; wicked: an evil tyrant.
Causing ruin, injury, or pain; harmful: the evil effects of a poor diet.
Characterized by or indicating future misfortune; ominous: evil omens.
Bad or blameworthy by report; infamous: an evil reputation.
Characterized by anger or spite; malicious: an evil temper.
The quality of being morally bad or wrong; wickedness.
That which causes harm, misfortune, or destruction: a leader's power to do both good and evil.
An evil force, power, or personification.
Something that is a cause or source of suffering, injury, or destruction: the social evils of poverty and injustice.
In an evil manner.