is,
Extreme enmity of heart; evil ill will; wanting to hurt or injure another for no reason, or because it makes one feel good, or out of a spirit of revenge.

Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice: And be ye kind one to another, tenderhearted, forgiving one another, even as God for Christ's sake hath forgiven you.
Ephesians 4:31-32