203 entries under basic topic. ×

1
amoebic(adjective, body, material, natural, animate)
1
anatomical(adjective, body, material, important, natural)
1
animate(material, natural, living, functional)
1
biological(material, natural, living, functional)
1
biotic(adjective, body, material, natural, animate)
1
cellular(adjective, body, material, natural, animate)
1
coal-and-ice(important, essential, critical, key)
1
compelling(adjective, significant, essential, critical)
1
compulsory(adjective, significant, essential, vital)
1
condition(noun, essential, essence, obligation)
1
de rigueur(expression, adjective, significant, essential)
1
decisive(adjective, important, significant, essential, critical)
1
duck soup(expression, simple, straightforward, uncomplicated)
1
early(adjective, simple, rough, head, beginning)
1
easy(simple, straightforward, uncomplicated)
1
exigent(adjective, significant, essential, vital)
1
expedient(adjective, significant, essential, vital)
1
facile(simple, straightforward, uncomplicated)
1
fire and ice(noun, expression, idiom, condition, essence)
1
highest(adjective, original, serious, essential)
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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>