95 entries under original topic. ×

16
primordial(adjective, head, beginning, last)
12
first(adjective, adverb, order, start, beginning)
12
initial(adjective, start, simple, head, beginning)
10
primeval(adjective, head, beginning, last)
10
primitive(adjective, start, simple, head, beginning)
10
former(noun, adjective, last, late)
9
ancient(adjective, start, late, old)
9
beginning(noun, adjective, start, simple, head)
9
incipient(adjective, head, beginning, opening)
8
old(adjective, last, late, past)
7
antediluvian(adjective, start, old, venerable)
6
embryonic(adjective, simple, beginning, opening)
5
aboriginal(adjective, head, beginning, last)
5
ahead(adjective, adverb, time, head, beginning)
5
earliest(adjective, simple, clean, perfect, natural)
5
erstwhile(adjective, last, late, old)
5
olden(adjective, late, old, past)
5
past(adjective, last, old, primitive)
4
antecedent(adjective, head, beginning, opening)
4
anterior(adjective, head, beginning, prime)
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APASmart Define. (2016). early thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/early/thesaurus/synonyms
ChicagoSmart Define. 2016. "early thesaurus" https://smartdefine.org/early/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, early thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/early/thesaurus/synonyms>.
MLASmart Define. "early thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/early/thesaurus/synonyms>