82 entries under adjective topic. ×

1
germinal(beginning, original, early, promising)
1
head(noun, start, beginning, original)
1
headmost(head, beginning, original, prime)
1
in the beginning(expression, idiom, head, beginning)
1
inceptive(head, beginning, original, prime)
1
initiating
1
key(head, beginning, original, prime)
1
lead off(expression, head, beginning, prime)
1
leading(head, beginning, original, best)
1
least(head, beginning, original, prime)
1
numero uno(expression, head, beginning, prime)
1
pioneer(head, beginning, original, prime)
1
pioneering(addition, establishment, introduction, preface)
1
preceding
1
preparative
1
primeval(head, beginning, original, prime)
1
primitive(head, beginning, original, prime)
1
primogenial(head, beginning, original, prime)
1
primordial(head, beginning, original, prime)
1
prior
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APASmart Define. (2016). opening thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/opening/thesaurus/synonyms
ChicagoSmart Define. 2016. "opening thesaurus" https://smartdefine.org/opening/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, opening thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/opening/thesaurus/synonyms>.
MLASmart Define. "opening thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/opening/thesaurus/synonyms>