(1):

(a.) Not moving; not appearing to move; stable; fixed.

(2):

(a.) Not improving or getting worse; not growing wiser, greater, better, more excellent, or the contrary.

(3):

(n.) One who, or that which, is stationary, as a planet when apparently it has neither progressive nor retrograde motion.

(4):

(a.) Appearing to be at rest, because moving in the line of vision; not progressive or retrograde, as a planet.