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60 entries under adjective topic. ×

8
important(strong, great, extraordinary, unusual)
7
major(great, important, large, serious)
6
heavyweight(great, informal, extraordinary, important)
6
serious(great, extraordinary, unusual, important)
6
significant(strong, great, extraordinary, unusual)
5
big-league(great, excellent, informal, important)
5
big-time(outstanding, worthy, notable, eminent)
5
blue-chip(excellent, important, large)
5
crucial(great, extraordinary, important, outstanding)
5
great(extraordinary, important, outstanding, serious)
4
substantial(strong, important, powerful, significant)
3
heavy(great, solid, informal, extraordinary)
3
meaningful(strong, great, extraordinary, unusual)
3
notable(great, solid, extraordinary, unusual)
2
bigtime(informal, important)
2
central
2
chief
2
critical(great, extraordinary, important, outstanding)
2
exceptional(great, unusual, heavy, important)
2
extraordinary(great, solid, unusual, important)
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APASmart Define. (2015). major-league thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/major-league/thesaurus/synonyms
ChicagoSmart Define. 2015. "major-league thesaurus" https://smartdefine.org/major-league/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, major-league thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/major-league/thesaurus/synonyms>.
MLASmart Define. "major-league thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/major-league/thesaurus/synonyms>