receding (part of speech: verb)
departing (part of speech: adjective)
recessive (part of speech: adjective)
- At the threshold appeared Estelle, and stood with folded arms until the servant who answered the bell had been heard retreating down the back stairs. - "Aurora the Magnificent", Gertrude Hall.
- I could not even hear her retreating footsteps. - "The Betrayal", E. Phillips Oppenheim.
- There was a clash of steel against steel, a few words of command, the sound of retreating footsteps, then silence. - "The Tangled Skein", Emmuska Orczy, Baroness Orczy.