Dateless
Dateless adjective - Not bearing a date.
Usage example: a dateless letter
Undated
Mutual synonyms
Both words in one sentence
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Dateless Grave: November, "freed" (as part of an experiment), visits the undated grave of her real-life daughter.
Source: Series / Dollhouse
Cite this Source
Undated and Dateless. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/dateless/undated
Dateless & Undated. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/dateless/undated>.
Undated or Dateless. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/dateless/undated.
Google Ngram Viewer shows how "dateless" and "undated" have occurred on timeline