Pronunciation: (mag-nan'u-mus),[key] —adj. 1. generous in forgiving an insult or injury; free from petty resentfulness or vindictiveness: to be magnanimous toward one's enemies. 2. high-minded; noble: a just and magnanimous ruler. 3. proceeding from or revealing generosity or nobility of mind, character, etc.: a magnanimous gesture of forgiveness.