78 entries under basic topic. ×

1
essence(condition, need, essential, requirement)
1
exigency(noun, want, need, essential, certainty)
1
exigent(adjective, significant, essential, vital)
1
heavy(important, essential, critical, fundamental)
1
incumbent on(expression, adjective, significant, essential)
1
integral(important, essential, critical, fundamental)
1
key(important, essential, critical, fundamental)
1
life-or-death(important, essential, critical, fundamental)
1
life or death(expression, idiom, need, essential)
1
meat-and-potatoes(important, essential, critical, fundamental)
1
momentous(adjective, significant, essential, vital)
1
name(important, essential, critical, fundamental)
1
name-of-the-game(important, essential, critical, fundamental)
1
name of game(expression, adjective, idiom, significant, essential)
1
nitty-gritty(condition, important, essential, critical)
1
principal(adjective, important, significant, capital, essential)
1
quintessential(adjective, significant, essential, vital)
1
rudiment(noun, condition, essence, necessity)
1
significant(adjective, important, essential, critical)
1
specified(adjective, significant, essential, vital)
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APASmart Define. (2015). prerequisite thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/prerequisite/thesaurus/synonyms
ChicagoSmart Define. 2015. "prerequisite thesaurus" https://smartdefine.org/prerequisite/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, prerequisite thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/prerequisite/thesaurus/synonyms>.
MLASmart Define. "prerequisite thesaurus" 4 September 2015. Web. 22 September 2026. <https://smartdefine.org/prerequisite/thesaurus/synonyms>