<p><strong>Adjective</strong></p><ul><li>(sunnier, sunniest) abounding in sunshine: a sunny day.</li><li>exposed to, lighted, or warmed by the direct rays of the sun: a sunny room.</li><li>pertaining to or proceeding from the sun; solar.</li><li>resembling the sun.</li><li>cheery, cheerful, or joyous: a sunny disposition.</li></ul>