1. greathearted: noble and generous in spirit; “a greathearted general”; “a magnanimous conqueror”
2. big: generous and understanding and tolerant; “a heart big enough to hold no grudges”; “that’s very big of you to be so forgiving”; “a large and generous spirit”; “a large heart”; “magnanimous toward his enemies”
3. greatness of mind; elevation or dignity of soul; That quality or combination of qualities, in character, which enables one to encounter danger and trouble with tranquility and firmness, to disdain injustice, meanness and revenge, and to act and sacrifice for
4. Magnanimity (derived from the Latin roots magn- great, and anima, soul) is the virtue of being great of mind and heart. It encompasses, usually, a refusal to be petty, a willingness to face danger, and actions for noble purposes. Its antithesis is pusillanimity.
Synonyms: altruistic, benevolent, charitable, considerate, forgiving, generous, unselfish