10
pre(characteristic, oldness, prefix, antiquity)
9
past(adjective, characteristic, precedence, oldness, antiquity)
8
preceding(adjective, characteristic, precedence, antecedence)
8
previous(adjective, characteristic, precedence, antecedence)
7
earlier(adjective, characteristic, precedence, antecedence)
6
antecedent(adjective, characteristic, precedence, antecedence)
6
former(adjective, characteristic, precedence, antecedence)
6
prior(adjective, characteristic, precedence, antecedence)
5
ancient(adjective, characteristic, oldness, antiquity)
5
antiquated(adjective, characteristic, oldness, antiquity)
5
obsolete(adjective, characteristic, oldness, antiquity)
5
old(adjective, characteristic, oldness, antiquity)
5
old-fashioned(adjective, characteristic, oldness, antiquity)
5
outdated(adjective, characteristic, oldness, antiquity)
5
passe(adjective, characteristic, oldness, antiquity)
4
nonmodern(adjective, characteristic, precedence, antecedence)
-1
deferred
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APASmart Define. (2015). neo thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/neo/thesaurus/antonyms
ChicagoSmart Define. 2015. "neo thesaurus" https://smartdefine.org/neo/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, neo thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/neo/thesaurus/antonyms>.
MLASmart Define. "neo thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/neo/thesaurus/antonyms>