46 entries under important topic. ×

1
integral(adjective, significant, original, essential)
1
intrinsic(adjective, significant, original, essential)
1
key(adjective, significant, original, essential)
1
major(adjective, significant, original, essential)
1
meat-and-potatoes(adjective, significant, original, essential)
1
necessary(adjective, significant, original, essential)
1
original(adjective, obscure, extraordinary, superior)
1
paramount(adjective, significant, original, essential)
1
primary(adjective, significant, original, essential)
1
prime(adjective, significant, original, essential)
1
primitive(adjective, significant, original, essential)
1
principal(adjective, significant, original, essential)
1
radical(adjective, significant, original, essential)
1
requisite(adjective, significant, original, essential)
1
rudimentary(adjective, significant, original, essential)
1
significant(adjective, original, essential, basic)
1
structural(significant, original, basic, vital)
1
substratal(adjective, significant, original, essential)
1
substrative(adjective, significant, original, essential)
1
supporting(adjective, significant, original, essential)
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APASmart Define. (2015). theoretical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/theoretical/thesaurus/synonyms
ChicagoSmart Define. 2015. "theoretical thesaurus" https://smartdefine.org/theoretical/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, theoretical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/theoretical/thesaurus/synonyms>.
MLASmart Define. "theoretical thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/theoretical/thesaurus/synonyms>