undeliverable

American

[uhn-di-liv-er-uh-buhl] / ʌn dɪˈlɪv ər ə bəl /

adjective

not able to be delivered.

noun

plural

undeliverables

something that cannot be delivered.

Other Word Forms

undeliverability noun

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Nationwide, however, he said the undeliverable rate for all first-class mail was 4.3%.

From Los Angeles Times • Sep. 24, 2025

Government plans to speed up employment support for people affected by the changes to welfare benefits will be "undeliverable", the BBC has been told.

From BBC • Jun. 27, 2025

The previous law required counties to send two mailers, and disqualify ballots if both pieces of mail came back as undeliverable.

From Seattle Times • Jan. 30, 2024

So election officials take a variety of approaches—for example, some check if election mail is returned as undeliverable, some check whether voters filed a change-of-address request with the Post Office, and others rely on ERIC.

From Slate • Mar. 27, 2023

Soon, his e-mails bounced back, undeliverable; she had closed the account.

From "Americanah" by Chimamanda Ngozi Adichie

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023