Undeliverable

Synonyms of undeliverable

• impossible
• unreachable
• unattainable

Antonyms of undeliverable

• reachable
• attainable
• deliverable

Collocations of undeliverable

undeliverable message

Frequency: 70 %

The undeliverable message was returned to the sender.

undeliverable package

Frequency: 60 %

The undeliverable package was sent back to the sender.

undeliverable email

Frequency: 50 %

The undeliverable email bounced back to the sender's inbox.

undeliverable letter

Frequency: 40 %

The undeliverable letter was marked as 'return to sender'.

undeliverable parcel

Frequency: 30 %

The undeliverable parcel was sent back to the post office.

Idiomatic Expressions for undeliverable

• Phrase: Dead letter
  Meaning: A letter that cannot be delivered to the intended recipient and is returned to the sender or sent to a mail recovery center
  Usage: The undeliverable mail was classified as a dead letter.