239 entries under important topic. ×

7
compelling(adjective, clear, meaning, essential)
7
large(adjective, strong, big, substantial)
7
leading(adjective, good, powerful, rank)
7
monumental(adjective, impressive, overwhelming)
7
pressing(verb, adjective, tough, severe, big)
6
cardinal(adjective, original, essential, critical)
6
distinguished(adjective, extraordinary, superior, big, unusual)
6
eventful(adjective, lively, outstanding, prominent)
6
exceptional(adjective, solid, extraordinary, superior, big)
6
fundamental(adjective, original, essential, critical)
6
necessary(adjective, big, original, substantial)
6
primary(adjective, superior, big, unusual)
6
salient(adjective, extraordinary, unusual, substantial)
6
urgent(adjective, clear, tough, severe, big)
5
effective(adjective, strong, sharp, powerful)
5
eminent(adjective, good, extraordinary, strange)
5
heavy(adjective, great, tough, severe, big)
5
high(adjective, rank, post, prominent)
5
instrumental(adjective, strong, powerful, useful)
5
main(adjective, good, superior, unusual)
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APASmart Define. (2016). significant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/significant/thesaurus/synonyms
ChicagoSmart Define. 2016. "significant thesaurus" https://smartdefine.org/significant/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, significant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/significant/thesaurus/synonyms>.
MLASmart Define. "significant thesaurus" 4 March 2016. Web. 23 September 2026. <https://smartdefine.org/significant/thesaurus/synonyms>