Synonyms|158Antonyms|2|Broader|0Narrower|0Related|29

39 entries under original topic. ×

1
integral(adjective, important, significant, essential)
1
intrinsic(adjective, important, significant, basic)
1
key(adjective, important, significant, basic)
1
major(adjective, important, significant, basic)
1
necessary(adjective, important, significant, basic)
1
paramount(adjective, important, significant, basic)
1
primordial(adjective, important, significant, basic)
1
principal(adjective, important, significant, basic)
1
requisite(adjective, important, significant, basic)
1
significant(adjective, important, basic, vital)
1
structural(adjective, important, significant, basic)
1
substrative(adjective, important, significant, essential)
1
supporting(adjective, important, significant, basic)
1
sustaining(adjective, important, significant, basic)
1
theoretical(adjective, important, significant, basic)
1
underived(adjective, important, significant, fresh)
1
vital(adjective, important, significant, basic)
0
deep(basic, primary)
0
deep-seated(adjective, basic, primary, profound)
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APASmart Define. (2015). foundational thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/foundational/thesaurus/synonyms
ChicagoSmart Define. 2015. "foundational thesaurus" https://smartdefine.org/foundational/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, foundational thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/foundational/thesaurus/synonyms>.
MLASmart Define. "foundational thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/foundational/thesaurus/synonyms>