32 entries under oldness topic. ×

22
archaic(adjective, feature, characteristic, detail, new)
18
primitive(adjective, feature, characteristic, start, detail)
13
fossil(noun, adjective, ancient)
13
prehistoric(adjective, ancient, before)
11
primordial(adjective, original, old, venerable, outdated)
10
primeval(adjective, original, old, venerable, outdated)
6
medieval(adjective, old, having)
5
aboriginal(adjective, last, original, past, primitive)
5
antebellum
2
antemundane
2
paleolithic(adjective, old)
2
preadamite
2
protohistoric
1
ancestral
1
classic
1
diluvian
0
beginning
0
black-letter
0
colonial
0
paleoanthropic
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APASmart Define. (2015). antediluvian thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/antediluvian/thesaurus/synonyms
ChicagoSmart Define. 2015. "antediluvian thesaurus" https://smartdefine.org/antediluvian/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, antediluvian thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/antediluvian/thesaurus/synonyms>.
MLASmart Define. "antediluvian thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/antediluvian/thesaurus/synonyms>