1
other
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pioneer
1
pioneering
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preceding
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precursive
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precursory
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preexistent
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prehistorically
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prevenient
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prior
1
prior to this(expression, idiom, time)
1
priorly
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prodromal
1
radically(adverb, earlier, then, before, once)
1
some time ago(expression, idiom, adverb, late, earlier)
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supra
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then as previously(expression, idiom)
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till
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to date
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to this day(expression, idiom)
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APASmart Define. (2015). heretofore thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heretofore/thesaurus/synonyms
ChicagoSmart Define. 2015. "heretofore thesaurus" https://smartdefine.org/heretofore/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, heretofore thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heretofore/thesaurus/synonyms>.
MLASmart Define. "heretofore thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/heretofore/thesaurus/synonyms>