Synonyms|659Antonyms|114|Broader|10Narrower|15Related|819
4
prime(adjective, good, intense, important, significant)
4
salient(adjective, solid, extraordinary, importance, big)
4
severe(adjective, tough, big, heavy, important)
4
telling(adjective, clear, strong, important, powerful)
4
world-shaking(adjective, important)
3
banner
3
big-name(adjective, important)
3
bountiful(adjective, significant, substantial, large)
3
bustling
3
celebrated(adjective, bad, great, excellent, extraordinary)
3
charged(adjective, significant, weighty, loaded)
3
earth-shaking(adjective, important, significant, historic)
3
first key(adjective, most important)
3
high
3
high-powered(adjective, important)
3
imperative(adjective, big, important, determined, significant)
3
laden
3
landmark(adjective, milestone)
3
large(adjective, big, significant, substantial, valuable)
3
most important
For more, visit Momentous on Power Thesaurus
10 years ago|15k views|share |citing 
APASmart Define. (2016). momentous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/momentous/thesaurus/synonyms
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>