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

82 entries under vital topic. ×

1
acute(adjective, heavy, important, significant, serious)
1
all-important(adjective, significant, serious, essential, critical)
1
cardinal(adjective, important, significant, substantial, serious)
1
central(significant, critical, decisive, imperative)
1
de rigueur(expression, adjective, significant, essential, basic)
1
deep(adjective, tough, severe, intense, important)
1
determining(big, significant, substantial, valuable)
1
exigent(adjective, big, heavy, significant, substantial)
1
expedient(adjective, significant, essential, basic)
1
extensive(big, significant, substantial, large, valuable)
1
foremost(adjective, important, significant, essential)
1
front-page(big, important, significant, substantial, valuable)
1
grievous(adjective, tough, severe, heavy, important)
1
hazardous(adjective, heavy, significant, serious)
1
importunate(big, significant, substantial, valuable)
1
incumbent on(expression, adjective, significant, essential, basic)
1
indispensable(adjective, important, significant, substantial, serious)
1
life-and-death(adjective, heavy, critical, acute)
1
mattering much(expression, big, significant, substantial, valuable)
1
name of game(expression, adjective, idiom, significant, essential)
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APASmart Define. (2016). momentous thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/momentous/thesaurus/synonyms
ChicagoSmart Define. 2016. "momentous thesaurus" https://smartdefine.org/momentous/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2016, momentous thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/momentous/thesaurus/synonyms>.
MLASmart Define. "momentous thesaurus" 1 April 2016. Web. 2 October 2026. <https://smartdefine.org/momentous/thesaurus/synonyms>