receding (
http://definr.com/receding)
adj 1: moving toward a position farther from the front; "the
receding glaciers of the last ice age"; "retiring fogs
revealed the rocky coastline" [syn:
retiring]
2: (of a hairline e.g.) moving slowly back [syn:
receding(a)]
n 1: a slow or gradual disappearance [syn:
fadeout]
2: a act of becoming more distant [syn:
recession]