Synonyms|12Antonyms|1|Broader|0Narrower|0Related|2
24
at that time
9
before
8
at one time
7
in time past
5
formerly
3
once
1
time was
0
long ago
0
previously
0
hitherto
-1
ago
-1
in days past
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APASmart Define. (2015). back then thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/back_then/thesaurus/synonyms
ChicagoSmart Define. 2015. "back then thesaurus" https://smartdefine.org/back_then/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, back then thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/back_then/thesaurus/synonyms>.
MLASmart Define. "back then thesaurus" 27 April 2015. Web. 20 September 2026. <https://smartdefine.org/back_then/thesaurus/synonyms>