3
pioneer(adjective, head, beginning, original, prime)
3
premier(adjective, order, heavy, important, head)
3
primal(adjective, beginning)
3
primitive(adjective, head, beginning, opening, original)
3
primogenial(adjective, head, beginning, opening, original)
3
primordial(adjective, head, beginning, opening, original)
3
prior
3
starting(adjective, beginning)
2
inchoate(beginning, opening, original, first, primary)
2
infantile(adjective, beginning)
2
address
2
antecedent(adjective, head, beginning, opening, original)
2
anterior(adjective, head, beginning, original, prime)
2
best(adjective, important, prominent, first, principal)
2
ceremonial
2
chief(adjective, order, heavy, important, head)
2
earliest(beginning, opening, original, best, first)
2
early(adjective, head, beginning, opening, original)
2
elementary(adjective, head, beginning, opening, original)
2
foundational(adjective, opening, initial)
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APASmart Define. (2015). inaugural thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/inaugural/thesaurus/synonyms
ChicagoSmart Define. 2015. "inaugural thesaurus" https://smartdefine.org/inaugural/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, inaugural thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/inaugural/thesaurus/synonyms>.
MLASmart Define. "inaugural thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/inaugural/thesaurus/synonyms>