75 entries under important topic. ×

1
axiological(significant, original, basic, vital)
1
axiomatic(significant, original, basic, vital)
1
bottom(significant, original, basic, vital)
1
bottom-line(significant, original, basic, vital)
1
constitutional(adjective, close, top, significant)
1
constitutive(significant, original, serious, basic)
1
decisive(significant, critical, vital, fundamental)
1
epoch-making
1
foundational(significant, original, basic, vital)
1
grass-roots(significant, original, basic, vital)
1
historic
1
meat-and-potatoes(significant, original, basic, vital)
1
momentous(significant, critical, vital, decisive)
1
pressing(adjective, significant, critical, vital)
1
structural(significant, original, basic, vital)
1
substratal(significant, original, essential, basic)
1
substrative(significant, original, basic, vital)
1
supporting(significant, original, basic, vital)
1
sustaining(significant, original, basic, vital)
1
telling
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APASmart Define. (2015). central thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/central/thesaurus/synonyms
ChicagoSmart Define. 2015. "central thesaurus" https://smartdefine.org/central/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, central thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/central/thesaurus/synonyms>.
MLASmart Define. "central thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/central/thesaurus/synonyms>