Pronunciation: (mag-nif'u-sunt),[key] —adj. 1. making a splendid appearance or show; of exceptional beauty, size, etc.: a magnificent cathedral; magnificent scenery. 2. extraordinarily fine; superb: a magnificent opportunity; magnificent weather. 3. noble; sublime: a magnificent poem. 4. (usually cap.) (formerly used as a title of some rulers) great; grand: Lorenzo the Magnificent. 5. lavishly munificent; extravagant: a magnificent inheritance.