147 entries under significant topic. ×

4
binding(adjective, basic, vital, necessary)
3
compelling(adjective, important, serious, critical)
3
decisive(adjective, severe, big, important)
3
dominant(adjective, important, outstanding, prominent)
3
foundational(adjective, simple, plain, pure, important)
3
nuclear(adjective, close, body, material, important)
3
predominant(adjective, important, outstanding, prominent)
3
valuable(adjective, big, substantial, useful)
2
center(noun, adjective, support, action, base)
2
exigent(adjective, big, important, substantial)
2
heavy(adjective, big, important, substantial)
2
substratal(adjective, simple, plain, important)
2
unavoidable(adjective, set, basic, vital)
1
axiological(adjective, important, original, basic)
1
axiomatic(important, original, basic, vital)
1
bottom(noun, adjective, important, original)
1
bottom-line(adjective, important, original, critical)
1
bottom line(noun, expression, important, essence)
1
conspicuous(vital, imperative)
1
determining(big, important, substantial, serious)
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APASmart Define. (2016). essential thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>