5
prima(noun, adjective)
5
superintending(verb, controlling, directing)
5
supervising(verb, controlling, directing)
5
topmost(adjective, top, excellent, lead, fine)
5
unsurpassed(adjective, bad, tough, top, perfect)
4
basic(adjective, important, head, significant, beginning)
4
conducting(verb, directing)
4
dominating(verb, adjective, important, prominent, prime)
4
exceptional(adjective, time, excellent, wonderful, marvelous)
4
facial(adjective, lead, beginning, first, visible)
4
fore(adjective, rank, post, status, age)
4
forerunning(verb, preceding)
4
high-flying(adjective, important, famous, well-known, successful)
4
in front(expression, adjective, idiom, adverb, advanced)
4
incomparable(adjective, bad, tough, top, solid)
4
introduction(noun, prelude)
4
lofty(adjective, fine, important, significant, noble)
4
overruling(adjective, importance, serious, essential, basic)
4
piloting(verb, controlling)
4
preponderant(adjective, top, superior, powerful, prime)
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APASmart Define. (2015). leading thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/leading/thesaurus/synonyms
ChicagoSmart Define. 2015. "leading thesaurus" https://smartdefine.org/leading/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, leading thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/leading/thesaurus/synonyms>.
MLASmart Define. "leading thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/leading/thesaurus/synonyms>