68 entries under prime topic. ×

11
front(adjective, order, lead, beginning, fresh)
11
opening(noun, adjective, order, start, original)
11
outstanding(adjective, good, bad, great, tough)
11
predominant(adjective, importance, outstanding, essential, prominent)
11
superior(adjective, good, quality, great, top)
10
champion(noun, adjective, good, bad, great)
9
arch(adjective, position, top, superior, importance)
9
essential(adjective, important, significant, original, prominent)
8
capital(noun, adjective, good, quality, bad)
8
highest(adjective, quality, bad, tough, top)
8
major(adjective, top, superior, unusual, important)
7
pioneer(adjective, pronoun, order, start, original)
7
sovereign(adjective, excellent, superior, importance, outstanding)
6
key(adjective, order, important, prominent, basic)
6
preeminent(adjective, bad, tough, top, excellent)
5
lead(verb, adjective, top, excellent, fine)
5
starting(noun, adjective, start, beginning, opening)
5
topmost(adjective, top, excellent, lead, fine)
4
prominent(adjective, important, outstanding, head, essential)
4
ruling(adjective, top, excellent, fine, superior)
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APASmart Define. (2016). first thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/first/thesaurus/synonyms
ChicagoSmart Define. 2016. "first thesaurus" https://smartdefine.org/first/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, first thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/first/thesaurus/synonyms>.
MLASmart Define. "first thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/first/thesaurus/synonyms>