a. [ L. retrogradus, from retrogradi, retrogressus, to retrograde; retro back + gradi to step: cf. F. rétrograde. See Grade. ] 1. (Astron.) Apparently moving backward, and contrary to the succession of the signs, that is, from east to west, as a planet. Hutton. [ 1913 Webster ]
And if he be in the west side in that condition, then is he retrograde. Chaucer. [ 1913 Webster ]
2. Tending or moving backward; having a backward course; contrary; as, a retrograde motion; -- opposed to progressive. “Progressive and not retrograde.” Bacon. [ 1913 Webster ]
It is most retrograde to our desire. Shak. [ 1913 Webster ]
3. Declining from a better to a worse state; as, a retrograde people; retrograde ideas, morals, etc. Bacon. [ 1913 Webster ]