85 entries under significant topic. ×

1
bottom-line(important, original, basic, vital)
1
constitutional(adjective, close, top, important)
1
constitutive(important, original, serious, basic)
1
decisive(important, critical, vital, fundamental)
1
foundational(important, original, basic, vital)
1
grass-roots(important, original, basic, vital)
1
meat-and-potatoes(important, original, basic, vital)
1
momentous(important, critical, vital, decisive)
1
pressing(adjective, important, critical, vital)
1
structural(important, original, basic, vital)
1
substratal(important, original, essential, basic)
1
substrative(important, original, basic, vital)
1
supporting(important, original, basic, vital)
1
sustaining(important, original, basic, vital)
1
theoretical(important, original, basic, vital)
1
underived(important, original, basic, vital)
1
urgent(adjective, important, critical, vital)
0
big(vital, imperative)
0
bottom line(expression, important, essential, basic)
0
considerable(vital, imperative)
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APASmart Define. (2015). central thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/central/thesaurus/synonyms
ChicagoSmart Define. 2015. "central thesaurus" https://smartdefine.org/central/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, central thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/central/thesaurus/synonyms>.
MLASmart Define. "central thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/central/thesaurus/synonyms>