12
grand(adjective, lead, importance, head, master)
11
big(adjective, importance, valuable, main, notable)
11
important(adjective, importance, substantial, valuable, main)
10
great(adjective, importance, valuable, main, notable)
10
impressive(adjective, importance, valuable, main, notable)
10
influential(adjective, importance, valuable, main, notable)
10
key(adjective, lead, importance, head, master)
10
material(adjective, importance, valuable, main, notable)
10
momentous(adjective, importance, valuable, main, notable)
10
substantial(adjective, importance, valuable, main, notable)
9
bigwig(adjective, importance, valuable, main, notable)
9
consequential(adjective, importance, valuable, main, notable)
9
earnest(adjective, importance, valuable, main, notable)
9
essential(adjective, importance, valuable, main, notable)
9
grave(adjective, importance, valuable, main, notable)
9
outstanding(adjective, importance, valuable, main, notable)
9
remarkable(adjective, importance, valuable, main, notable)
9
serious(adjective, importance, valuable, main, notable)
9
vital(adjective, importance, valuable, main, notable)
9
weighty(adjective, importance, valuable, main, notable)
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APASmart Define. (2015). big-league thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/big-league/thesaurus/synonyms
ChicagoSmart Define. 2015. "big-league thesaurus" https://smartdefine.org/big-league/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, big-league thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/big-league/thesaurus/synonyms>.
MLASmart Define. "big-league thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/big-league/thesaurus/synonyms>