Re″tro‐grade, v. i. [imp. & p. p.Retrograded (?); p. pr. & vb. n.Retrograding.] [L. retrogradare, retrogradi: cf. F. rétrograder.] 1. To go in a retrograde direction; to move, or appear to move, backward, as a planet.
2. Hence, to decline from a better to a worse condition, as in morals or intelligence.