45 entries under vital topic. ×

1
intrinsic(important, significant, original, basic)
1
key(important, significant, original, basic)
1
major(important, significant, original, basic)
1
meat-and-potatoes(important, significant, original, basic)
1
necessary(adjective, material, important, natural, basic)
1
original(adjective, material, important, natural, basic)
1
paramount(important, significant, original, basic)
1
primary(adjective, material, important, natural, basic)
1
prime(adjective, material, important, natural, basic)
1
primitive(adjective, material, important, natural, basic)
1
primordial(important, significant, original, basic)
1
principal(adjective, material, important, natural, basic)
1
radical(important, original, basic, primary)
1
requisite(important, significant, original, basic)
1
rudimentary(important, significant, original, basic)
1
significant(important, original, basic, major)
1
substratal(important, significant, original, basic)
1
substrative(important, significant, original, basic)
1
supporting(important, significant, original, basic)
1
sustaining(important, significant, original, basic)
11 years ago|3.3k views|share |citing 
APASmart Define. (2015). structural thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/structural/thesaurus/synonyms
ChicagoSmart Define. 2015. "structural thesaurus" https://smartdefine.org/structural/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, structural thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/structural/thesaurus/synonyms>.
MLASmart Define. "structural thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/structural/thesaurus/synonyms>