203 entries under basic topic. ×

1
ideal(absolute, abstract, theoretical, abstruse)
1
incumbent on(expression, adjective, significant, essential)
1
latent(adjective, characteristic, natural, original, essential)
1
life or death(expression, idiom, need, essential)
1
live(material, natural, living, functional)
1
living(material, natural, functional, nuclear)
1
mandatory(adjective, significant, essential, vital)
1
meat and potatoes(expression, idiom, simple, condition, straightforward)
1
name(important, essential, critical, key)
1
name-of-the-game(important, essential, critical, key)
1
name of game(noun, expression, adjective, idiom, significant)
1
name of the game(expression, idiom, important, essential, critical)
1
nuclear(adjective, body, material, important, significant)
1
opening(adjective, head, beginning, original)
1
outstanding(adjective, important, significant, essential)
1
part(noun, drop, material, element, essential)
1
plasmic(adjective, body, material, natural, animate)
1
precondition(noun, concern, demand, need, essential)
1
predominant(adjective, important, significant, usual, essential)
1
prefatory(simple, opening, straightforward, first)
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APASmart Define. (2016). fundamental thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fundamental/thesaurus/synonyms
ChicagoSmart Define. 2016. "fundamental thesaurus" https://smartdefine.org/fundamental/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, fundamental thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fundamental/thesaurus/synonyms>.
MLASmart Define. "fundamental thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/fundamental/thesaurus/synonyms>