43 entries under outdated topic. ×

16
primordial(adjective, head, beginning, last, original)
10
primeval(adjective, head, beginning, last, original)
10
primitive(adjective, start, simple, head, beginning)
10
former(noun, adjective, last, original, late)
10
original(adjective, head, beginning, opening, natural)
8
old(adjective, last, original, late, past)
7
antediluvian(adjective, start, original, old, venerable)
5
aboriginal(adjective, head, beginning, last, original)
5
erstwhile(adjective, last, original, late, old)
5
olden(adjective, original, late, old, past)
5
past(adjective, last, original, old, primitive)
4
antiquated(adjective, last, original, old, venerable)
4
antique(adjective, last, original, old, venerable)
4
immemorial(adjective, last, original, primitive, venerable)
4
pristine(adjective, clean, pure, head, beginning)
3
bygone(adjective, last, original, late, old)
3
late(adjective, last, original, old, past)
3
once(adjective, last, original, late, old)
3
quondam(adjective, last, original, late, old)
3
sometime(adjective, adverb, last, original, late)
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APASmart Define. (2016). early thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/early/thesaurus/synonyms
ChicagoSmart Define. 2016. "early thesaurus" https://smartdefine.org/early/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, early thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/early/thesaurus/synonyms>.
MLASmart Define. "early thesaurus" 29 February 2016. Web. 20 September 2026. <https://smartdefine.org/early/thesaurus/synonyms>