1
observable(great, extraordinary, outstanding, serious, prominent)
1
of great moment(adjective, importance, valuable, main, notable)
1
of importance(adjective, importance, valuable, main, notable)
1
of moment(expression, significant, vital, imperative)
1
of note(expression, important, outstanding, significant, prominent)
1
of substance(expression, significant, vital, imperative)
1
on the map(adjective, importance, valuable, main, notable)
1
page-oner(important, outstanding, prominent, distinguished, well-known)
1
paramount(important, outstanding, significant, prominent, vital)
1
ponderous(significant, vital, imperative)
1
popular(great, important, famous, outstanding, eminent)
1
preeminent(great, important, outstanding, serious, prominent)
1
premier(adjective, lead, head, master, boss)
1
premiere(adjective, lead, head, master, boss)
1
pressing(significant, vital, imperative)
1
prestigious(important, outstanding, prominent, distinguished, well-known)
1
primal(adjective, lead, head, master, boss)
1
prime(adjective, lead, head, master, boss)
1
red-letter(great, extraordinary, outstanding, serious, prominent)
1
redoubted(important, outstanding, prominent, distinguished, well-known)
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APASmart Define. (2015). big-league thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/big-league/thesaurus/synonyms
ChicagoSmart Define. 2015. "big-league thesaurus" https://smartdefine.org/big-league/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, big-league thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/big-league/thesaurus/synonyms>.
MLASmart Define. "big-league thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/big-league/thesaurus/synonyms>