Meher Baba reserved the use of the word “sin” for a particular class of behavior, “hypocrisy.” Even this sin is not irretrievable, though it is bound to provoke much suffering, and Baba said that God forgives everything, except hypocrisy:
On the spiritual path hypocrisy is the only sin. (Sourced from The Awakener, Vol 22, No 1, Page 40.)
[G]od is everything, present everywhere and knows everything. By remembering this always, you will not try to pretend to be what you are not. (Sourced from Lord Meher online edition, page 3750 “1955 Meherabad Sahavas”)
God forgives sins in the sense that He does not eternally damn any one for his sins. He keeps the door of redemption eternally open. (Sourced from Beams, online edition, page 37)
The worst sinners are better than hypocritical saints. (Sourced from Treasures from the Meher Baba Journal, online edition, page 168)
For his own reasons, Baba did not use “sin” to describe the errors all people make from time to time, referring to them in less “Biblical” terms. Perhaps at the core of this usage was a desire top differentiate God’s real attitude toward mistakes from the eternal damnation that figures in the more harsh language of later followers of Jesus.