67 entries under important topic. ×

3
primary(adjective, significant, original, essential)
3
principal(adjective, significant, original, capital)
2
bottom-line(adjective, significant, original, essential)
2
necessitous(adjective, capital, essential, vital)
2
prime(adjective, significant, original, essential)
2
wanted(adjective, significant, capital, essential)
1
axiological(adjective, significant, original, essential)
1
axiomatic(significant, original, basic, vital)
1
basal(adjective, significant, original, essential)
1
bottom(adjective, significant, original, essential)
1
coal-and-ice(essential, critical, basic, fundamental)
1
constitutional(adjective, significant, original, essential)
1
constitutive(significant, capital, essential, critical)
1
decisive(adjective, significant, essential, critical)
1
elemental(adjective, significant, original, essential)
1
elementary(adjective, significant, original, essential)
1
first(adjective, significant, original, essential)
1
foundational(adjective, significant, original, essential)
1
grass-roots(adjective, significant, original, essential)
1
heavy(essential, critical, basic, fundamental)
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APASmart Define. (2015). requisite thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/requisite/thesaurus/synonyms
ChicagoSmart Define. 2015. "requisite thesaurus" https://smartdefine.org/requisite/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, requisite thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/requisite/thesaurus/synonyms>.
MLASmart Define. "requisite thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/requisite/thesaurus/synonyms>