Bygone
Bygone adjective - No longer existing.
Unretained and bygone are semantically related. In some cases you can replace term "Unretained" with "Bygone", this adjectives are similar.
Unretained
Bygone and unretained are semantically related. Sometimes you can replace term "Bygone" with "Unretained", this words are similar.
Mutual synonyms
Cite this Source
Unretained and Bygone. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/bygone/unretained
Bygone & Unretained. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/bygone/unretained>.
Unretained or Bygone. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/bygone/unretained.
Google Ngram Viewer shows how "bygone" and "unretained" have occurred on timeline