1.  receding(n = noun.event) fadeout - a slow or gradual disappearance;
is a kind of disappearance
Derived form verb recede₃

2.  receding(n = noun.act) recession - the act of becoming more distant;
is a kind of withdrawal
Derived forms verb recede₂, verb recede₁

   receding(s = adj.all) - (of a hairline e.g.) moving slowly back;

N  regress, regression, retrocession, retrogression, retrograduation, retroaction, reculade, retreat, withdrawal, retirement, remigration, recession, recess, crab-like motion, refluence, reflux, backwater, regurgitation, ebb, return, resilience reflection, reflexion (recoil), flip-flop, volte-face, counter motion, retrograde motion, backward movement, motion in reverse, counter movement, counter march, veering, tergiversation, recidivation, backsliding, fall, deterioration, recidivism, recidivity, reversal, relapse, turning point, receding, retrograde, retrogressive, regressive, refluent, reflex, recidivous, resilient, crab-like, balky, reactionary, back, backwards, reflexively, to the right about, a reculons, a rebours, revenons a nos moutons, as you were.

N  recession, retirement, withdrawal, retreat, retrocession, departure, recoil, flight, receding, distance oneself from a person.