Synonyms|659Antonyms|114|Broader|10Narrower|15Related|819

123 entries under important topic. ×

3
strong(energetic, powerful, significant, large)
2
bad(adjective, great, excellent, superior)
2
compelling(adjective, clear, significant, serious)
2
dominant(adjective, bad, strong, great, excellent)
2
earth-shattering(adjective, significant, historic)
2
extraordinary(adjective, great, solid, superior, unusual)
2
far-reaching(adjective, severe, significant, substantial)
2
fundamental(adjective, significant, substantial, serious)
2
major-league(strong, powerful, significant, large)
2
of moment(expression, adjective, big, substantial)
2
paramount(adjective, good, big, significant)
2
preeminent(adjective, bad, great, excellent, solid)
2
red-letter(adjective, great, extraordinary, superior, unusual)
2
standout(adjective, bad, great, excellent, extraordinary)
2
super(adjective, good, bad, great, extraordinary)
2
superior(adjective, bad, great, excellent, unusual)
1
ace(adjective, bad, great, excellent, superior)
1
acute(adjective, heavy, significant, serious)
1
big-wig
1
cardinal(adjective, significant, substantial, serious)
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ChicagoSmart Define. 2016. "momentous thesaurus" https://smartdefine.org/momentous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, momentous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/momentous/thesaurus/synonyms>.
MLASmart Define. "momentous thesaurus" 1 April 2016. Web. 30 September 2026. <https://smartdefine.org/momentous/thesaurus/synonyms>