Synonyms|659Antonyms|114|Broader|10Narrower|15Related|819
3
of importance(expression, adjective, idiom, importance, valuable)
3
powerful
3
stirring(importance, eventuality)
3
striking(adjective, great, solid, extraordinary, unusual)
3
strong(energetic, important, powerful, significant, large)
3
top of mind(adjective, most important)
2
absolute
2
authoritative
2
bad(adjective, great, excellent, superior, important)
2
basic(adjective, significant, essential, vital, required)
2
burdensome(adjective, big, heavy, substantial)
2
climacteric
2
compelling(adjective, clear, important, significant, serious)
2
conspicuous(adjective, great, solid, extraordinary, big)
2
dominant(adjective, bad, strong, great, excellent)
2
earth-shattering(adjective, important, significant, historic)
2
epic
2
exceptional(adjective, bad, great, excellent, solid)
2
extraordinary(adjective, great, solid, superior, unusual)
2
far-reaching(adjective, severe, important, significant, substantial)
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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>