undated

British  

/ ʌnˈdeɪtɪd /

adjective

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

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Example Sentences

In an apparent attempt to introduce him to the wider public, Iran’s state media on Thursday released a grainy, undated video that shows Khamenei giving a religious lesson.

From The Wall Street Journal

But soon after Katz’s announcement, Iranian authorities released an undated note said to have been written by Larijani in which he honored Iranian sailors killed in a U.S. attack.

From Los Angeles Times

But shortly after Katz's statement, Larijani's social media accounts posted an undated, handwritten note that state media said was written on Tuesday.

From BBC

A third undated snap shows the former US president reclining in a hot tub beside someone whose face is blacked out to protect their identity.

From BBC

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

From Los Angeles Times