<p><strong>Adjective</strong></p><ul><li>affected by unhappiness or grief; sorrowful or mournful: to feel sad because a close friend has moved away.</li><li>expressive of or characterized by sorrow: sad looks; a sad song.</li><li>causing sorrow: a sad disappointment; sad news.</li><li>(of color) somber, dark, or dull; drab.</li><li>deplorably bad; sorry: a sad attempt.</li><li>firm or steadfast (obsolete).</li></ul>