<p><strong>Noun</strong></p><ul><li>great brightness; luster: the brilliance of a fine diamond.<ul><li>Synonyms: refulgence, effulgence, radiance</li><li>Antonyms: dullness</li></ul></li><li>excellence or distinction; conspicuous talent, mental ability, etc.<ul><li>Synonyms: illustriousness, genius, preeminence</li><li>Antonyms: dullness</li></ul></li><li>splendor, elegance, or magnificence: the brilliance of the court of Louis XIV.</li><li>Optics: that luminance of a body consisting of its saturation and brightness.</li></ul>