Back when
Past
Past adverb - So as to pass a given point.
Mutual synonyms
Both terms in one sentence
-
Brianna had a similar attitude towards Genn back when s/he still had a male form and Brianna was still trying to get past her inherited feelings for Stryyp.
Source: Comic Book / Gold Digger -
Stewie also meets his past self and notices how said past self has a lot more cool gadgets back when he was trying to take over the world.
-
In the end credits, Austin is confirmed to have his mojo back when he sees his past self shagging Felicity.
Source: Magic Feather
Cite this Source
Past and Back when. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/back_when/past
Back when & Past. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/back_when/past>.
Past or Back when. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/back_when/past.
Google Ngram Viewer shows how "back when" and "past" have occurred on timeline