Directed backwards, retreating; reverting, especially to an inferior state, declining; inverse, reverse; movement opposite to normal or intended motion, often circular motion.
User Defined Definitions
"move backward in an orbit, of celestial bodies"
"move in a direction contrary to the usual one"
"move back"
"go back over"
"get worse or fall back to a previous condition"
"moving from east to west on the celestial sphere; or--for planets--around the sun in a direction opposite to that of the Earth"
"of amnesia; affecting time immediately preceding trauma"
"going from better to worse"
"moving or directed or tending in a backward direction or contrary to a previous direction"