retrograde

(verb) move backward in an orbit, of celestial bodies.

(verb) move in a direction contrary to the usual one. Example: "Retrograding planets."

(verb) move back. Synonyms: retreat. Example: "The glacier retrogrades."

(verb) go back over. Synonyms: rehash, hash over. Example: "Retrograde arguments."

(verb) get worse or fall back to a previous condition. Synonyms: regress, retrogress.

(adj) moving from east to west on the celestial sphere; or--for planets--around the sun in a direction opposite to that of the Earth. Synonyms: retrograde (vs. direct).

(adj) of amnesia; affecting time immediately preceding trauma. Synonyms: retrograde (vs. anterograde).

(adj) going from better to worse. Synonyms: retrogressive.

(adj) moving or directed or tending in a backward direction or contrary to a previous direction. Synonyms: retral.