undated

British

/ ʌnˈdeɪtɪd /

adjective

(of a manuscript, letter, etc) not having an identifying date

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

The memo is undated but notes that “This plan has been updated with the latest timeline as of 10/7.”

From Los Angeles Times • Feb. 20, 2026

Among the released files are several undated photos, by appearances from the early 2000s, of Mr. Clinton with Epstein and a variety of celebrities and unidentified women, the latter’s faces redacted.

From The Wall Street Journal • Feb. 11, 2026

In an undated letter of support included in the trove of emails, Chomsky said the two had held "many long and often in-depth discussions".

From BBC • Feb. 4, 2026

The BBC understands the unsigned and undated "heads of terms" was actually a draft proposal, and that no agreement had been made.

From BBC • Jan. 28, 2026

An undated eighteenth-century handbill announcing an exhibition of three of Vaucanson’s automata: the flute player, the drummer and the digesting duck.

From "The Invention of Science" by David Wootton

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