58 entries under basic topic. ×

1
structural(important, significant, original, vital)
1
substratal(adjective, important, significant, original, essential)
1
substrative(important, significant, original, vital)
1
supporting(adverb, important, inferior, significant, down)
1
sustaining(important, significant, original, vital)
1
theoretical(important, significant, original, vital)
1
ultimate(noun, adjective, top, edge, essence)
1
underived(important, significant, original, vital)
1
vital(adjective, important, significant, original, essential)
0
concealed(adjective, original, fundamental, hidden)
0
critical(adjective, original, fundamental, hidden)
0
deep-seated(original, primary)
0
hidden(adjective, original, fundamental, primary)
0
latent(adjective, original, fundamental, hidden)
0
lurking(adjective, original, fundamental, hidden)
0
needful(adjective, original, fundamental, hidden)
0
rooter(fundamental, latent)
0
veiled(adjective, original, fundamental, hidden)
<123>
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APASmart Define. (2016). bottom thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/bottom/thesaurus/synonyms
ChicagoSmart Define. 2016. "bottom thesaurus" https://smartdefine.org/bottom/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, bottom thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/bottom/thesaurus/synonyms>.
MLASmart Define. "bottom thesaurus" 2 March 2016. Web. 20 September 2026. <https://smartdefine.org/bottom/thesaurus/synonyms>