6
before(adverb, late, now, earlier, then)
5
earlier(adverb, back, late, now, then)
5
once(adverb, late, now, earlier, then)
4
before this(expression, adverb, past, earlier, then)
4
heretofore(adverb, back, late, now, earlier)
4
previously
3
ago(elsewhere, precendently)
3
already(adverb, late, now, earlier, then)
3
formerly(adverb, back, earlier, then, before)
3
then
2
aforetime(adverb, back, earlier, then, before)
2
at one time(expression, idiom, adverb, late, earlier)
2
away back(expression, adverb, late, earlier, then)
2
back(adverb, late, earlier, then, before)
2
back when(expression, adverb, late, earlier, then)
2
before now(expression, adverb, now, earlier, then)
2
come to an end(expression, adjective, idiom, complete, full)
2
done with(expression, adjective, complete, full, settled)
2
down memory lane(expression, idiom, adverb, earlier, then)
2
eons ago(expression, adverb, earlier, then, before)
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APASmart Define. (2015). in the past thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/in_the_past/thesaurus/synonyms
ChicagoSmart Define. 2015. "in the past thesaurus" https://smartdefine.org/in_the_past/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, in the past thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/in_the_past/thesaurus/synonyms>.
MLASmart Define. "in the past thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/in_the_past/thesaurus/synonyms>