undeliverable

English

Etymology

From un- +‎ deliverable.

Adjective

undeliverable (not comparable)

  1. Not able to be delivered.
    The dead letter office keeps undeliverable mail.
    The ambitious project to build 500 new hospitals was later deemed to be undeliverable.

Noun

undeliverable (plural undeliverables)

  1. A message, parcel, etc. that cannot be delivered.