15
ancestor
9
predecessor
5
antecedent
5
past
3
father
3
forebear
2
ancestry
2
forebearer
2
forefather
1
forerunner
1
grandfather
1
ancestors
1
blood kinship
1
breeding
1
descent
1
eradicate
1
progenitor
0
primogenitor
0
extraction
0
line
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APASmart Define. (2016). posterity thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/posterity/thesaurus/antonyms
ChicagoSmart Define. 2016. "posterity thesaurus" https://smartdefine.org/posterity/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, posterity thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/posterity/thesaurus/antonyms>.
MLASmart Define. "posterity thesaurus" 2 March 2016. Web. 22 September 2026. <https://smartdefine.org/posterity/thesaurus/antonyms>