Magnanimous (pronounced as mag-nan-uh-muhs) is an adjective that means generous in forgiving an insult or injury; free from petty resentfulness or vindictiveness. For example, to be magnanimous toward one's enemies. A second possible definition is high-minded; noble. For example, a just and magnanimous ruler. Another possible definition is "proceeding from or revealing generosity or nobility of mind, character, etc." For example, a magnanimous gesture of forgiveness.

Source: Dictionary.com