<p><strong>Adjective</strong></p><ul><li>moving backward; having a backward motion or direction; retiring or retreating.</li><li>inverse or reversed, as order.</li><li>Synonyms: backward.</li><li>Chiefly Biology: exhibiting degeneration or deterioration.</li><li>Astronomy: moving in an orbit in the direction opposite to that of the earth in its revolution around the sun.</li><li>appearing to move on the celestial sphere in the direction opposite to the natural order of the signs of the zodiac, or from east to west.</li><li>Music: proceeding from the last note to the first; a melody in retrograde motion.</li><li>Archaic: contrary; opposed.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) retrograded, retrograding: to move or go backward; retire or retreat.</li><li>Synonyms: retrocede, recede, withdraw.</li><li>Chiefly Biology: to decline to a worse condition; degenerate.</li><li>Astronomy: to have a retrograde motion.</li><li>(used with object) retrograded, retrograding: Archaic: to turn back.</li></ul>