undeliverable

adjective

un·​de·​liv·​er·​able ˌən-di-ˈli-v(ə-)rə-bəl How to pronounce undeliverable (audio)
-dē-
: not capable of being delivered : not deliverable
undeliverable mail/email
an undeliverable parcel
a message returned as undeliverable
undeliverability
ˌən-di-ˌli-v(ə-)rə-ˈbi-lə-tē How to pronounce undeliverable (audio)
-dē-
noun

Examples of undeliverable in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His emails to staff began bouncing back as undeliverable. — Rachel Hale, USA Today, 11 May 2026 Konan alleges the employees marked some of the mail as undeliverable or return to sender. — Mark Sherman, Fortune, 25 Feb. 2026 My letter came back as undeliverable. — Jeremy Kohler, ProPublica, 20 Apr. 2026 However, immigration court records show notices went to the wrong address and were returned as undeliverable. — Aj Willingham, AJC.com, 16 Feb. 2026 See All Example Sentences for undeliverable

Word History

First Known Use

1843, in the meaning defined above

Time Traveler
The first known use of undeliverable was in 1843

Rhymes for undeliverable

See All Rhymes for undeliverable

Browse Nearby Words

undelightful
undeliverable
undelivered
See all Nearby Words

Cite this Entry

“Undeliverable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undeliverable. Accessed 8 Jul. 2026.

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