2
innovative(adjective, original, leading-edge, pioneering, trailblazing)
2
lead off(adjective, order)
2
loftiest(adjective, top, excellent, fine, superior)
2
master(top, superior, principal)
2
matchless(adjective, bad, tough, top, perfect)
2
native
2
new(adjective, beginning)
2
notable(adjective, good, great, excellent, important)
2
noted(adjective, good, great, excellent, fine)
2
novel(adjective, original, leading-edge, pioneering, trailblazing)
2
ordinal number(expression, idiom)
2
overruling(adjective, serious, essential, basic, prime)
2
peerless(adjective, good, bad, great, tough)
2
precursor(noun, original, epitome, prototype, paradigm)
2
prefatory
2
prelusive
2
prior(adjective, lower, opening, basic, old)
2
proemial
2
prototypal(previous, initial)
2
stellar(adjective, quality, top, superior, important)
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APASmart Define. (2016). first thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/first/thesaurus/synonyms
ChicagoSmart Define. 2016. "first thesaurus" https://smartdefine.org/first/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, first thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/first/thesaurus/synonyms>.
MLASmart Define. "first thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/first/thesaurus/synonyms>