Synonyms|861Antonyms|138|Broader|14Narrower|0Related|399

77 entries under significant topic. ×

1
determining(big, important, substantial, serious)
1
earnest(big, substantial, valuable, persistent)
1
esteemed
1
expedient(adjective, essential, basic, vital)
1
extensive(big, substantial, valuable, vital)
1
far-reaching(big, substantial, valuable, vital)
1
foremost(important, capital, essential, vital)
1
front-page(big, substantial, valuable, vital)
1
heavy(big, important, substantial, valuable)
1
incumbent on(verb, expression, adjective, phrasal verb)
1
key(important, essential, critical, basic)
1
large(big, substantial, valuable, vital)
1
main(important, capital, essential, vital)
1
marked(big, substantial, valuable, vital)
1
material(adjective, big, substantial, valuable)
1
mattering much(expression, big, substantial, valuable)
1
of moment(expression, big, substantial, valuable)
1
of note(expression, big, substantial, valuable)
1
of substance(expression, big, substantial, valuable)
1
ponderous(big, substantial, valuable, vital)
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APASmart Define. (2015). imperative thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/imperative/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperative thesaurus" https://smartdefine.org/imperative/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, imperative thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/imperative/thesaurus/synonyms>.
MLASmart Define. "imperative thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/imperative/thesaurus/synonyms>