Synonyms|211Antonyms|2|Broader|0Narrower|0Related|9

44 entries under extremely significant topic. ×

8
considerable(adjective, importance, main)
8
high-up(adjective, importance, valuable, main, notable)
8
significant(adjective, importance, valuable, main, notable)
7
big league(adjective, lead, importance, head, master)
7
big shot(adjective, importance, valuable, main, notable)
7
challenging(adjective, importance, valuable, main, notable)
7
constitutive(adjective, importance, valuable, main, notable)
7
core(adjective, lead, importance, head, master)
7
donnish(adjective, importance, valuable, main, notable)
7
exciting(adjective, importance, valuable, main, notable)
7
far reaching(adjective, importance, valuable, main, notable)
7
fateful(adjective, importance, valuable, main, notable)
7
haughty(adjective, importance, valuable, main, notable)
7
historic(adjective, importance, main)
7
key-note(adjective, importance, valuable, main, notable)
7
meaningful(adjective, importance, main)
7
newsworthy(adjective, importance, valuable, main, notable)
7
notable(adjective, importance, main)
7
portentous(adjective, importance, valuable, main, notable)
7
purposeful(adjective, importance, valuable, main, notable)
For more, visit Big-league on Power Thesaurus
11 years ago|1.4k views|share |citing 
APASmart Define. (2015). big-league thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/big-league/thesaurus/synonyms
ChicagoSmart Define. 2015. "big-league thesaurus" https://smartdefine.org/big-league/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, big-league thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/big-league/thesaurus/synonyms>.
MLASmart Define. "big-league thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/big-league/thesaurus/synonyms>