Synonyms|1.1kAntonyms|182|Broader|18Narrower|25Related|905

217 entries under essential topic. ×

7
need(noun, verb, concern, demand)
7
paramount(adjective, important, significant, original)
7
significant(adjective, important, original, critical)
7
sine qua non(noun, expression, idiom, part, need)
6
constitutive(adjective, important, capital, critical)
6
core(noun, adjective, support, action, cause)
6
factor(noun, drop, part, material)
6
major(adjective, important, significant, original)
6
necessity(noun, condition, need, essence)
6
theorem(noun, law, support, regulation, action)
6
ultimate(adjective, simple, basic, surface)
5
center(noun, adjective, support, action, cause)
5
heart(noun, support, action, part, cause)
5
imperative(noun, adjective, law, regulation, concern)
5
leading(adjective, important, head, significant, beginning)
5
material(noun, adjective, drop, part, important)
5
staple(adjective, basic, main, chief)
4
bedrock(noun, support, action, cause, start)
4
capital(adjective, important, prime, vital)
4
dominant(adjective, top, important, significant, usual)
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HarvardSmart Define 2016, fundamental thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>.
MLASmart Define. "fundamental thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms>