2
past
2
pre-existent
2
pre-existing
2
precedent
2
precursory
2
preexistent
2
virgin(adjective, termination)
1
earliest
1
early
1
fore
1
front
1
improve
1
inaugural
1
initially
1
intramural
1
introduce
1
introductory
1
original
1
preexisting
1
premature
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APASmart Define. (2015). subsequent thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/subsequent/thesaurus/antonyms
ChicagoSmart Define. 2015. "subsequent thesaurus" https://smartdefine.org/subsequent/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, subsequent thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/subsequent/thesaurus/antonyms>.
MLASmart Define. "subsequent thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/subsequent/thesaurus/antonyms>