147 entries under essential topic. ×

1
decisive(adjective, important, significant, critical)
1
duress(need, requirement, essentiality)
1
duty(noun, want, obligation, requirement)
1
element(noun, form, fix, pass, position)
1
environment(noun, form, fix, pass, position)
1
essence(condition, need, basic, requirement)
1
essentiality(need, requirement)
1
exaction(need, requirement, essentiality)
1
exigency(noun, want, need, certainty)
1
exigent(adjective, significant, basic, vital)
1
godsend(need, requirement, essentiality)
1
heavy(important, critical, basic, fundamental)
1
incumbent on(expression, adjective, significant, basic)
1
indispensability(need, requirement, essentiality)
1
inexorableness(need, requirement, essentiality)
1
integral(important, critical, basic, fundamental)
1
key(important, critical, basic, fundamental)
1
life-or-death(important, critical, basic, fundamental)
1
life or death(expression, idiom, need, basic)
1
limitation(noun, form, fix, pass, position)
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APASmart Define. (2015). prerequisite thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/prerequisite/thesaurus/synonyms
ChicagoSmart Define. 2015. "prerequisite thesaurus" https://smartdefine.org/prerequisite/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, prerequisite thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/prerequisite/thesaurus/synonyms>.
MLASmart Define. "prerequisite thesaurus" 4 September 2015. Web. 23 September 2026. <https://smartdefine.org/prerequisite/thesaurus/synonyms>