Synonyms|390Antonyms|76|Broader|5Narrower|3Related|255

56 entries under essential topic. ×

2
prerequisite(adjective, important, significant, critical)
1
binding(adjective, significant, basic, vital)
1
bottom-line(adjective, important, significant, critical)
1
cardinal(adjective, important, significant, capital)
1
chief(adjective, important, significant, capital)
1
coal-and-ice(important, critical, basic, fundamental)
1
constitutive(important, capital, critical, basic)
1
de rigueur(expression, adjective, idiom, significant)
1
decisive(adjective, important, significant, critical)
1
exigent(adjective, significant, basic, vital)
1
expedient(adjective, significant, basic, vital)
1
heavy(important, critical, basic, fundamental)
1
incumbent on(expression, adjective, significant, basic)
1
key(important, critical, basic, fundamental)
1
life-or-death(adjective, important, critical, basic)
1
meaningful(important, critical, fundamental, decisive)
1
meat-and-potatoes(important, critical, basic, fundamental)
1
momentous(adjective, significant, basic, vital)
1
name(important, critical, basic, fundamental)
1
name-of-the-game(important, critical, basic, fundamental)
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APASmart Define. (2015). needed thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/needed/thesaurus/synonyms
ChicagoSmart Define. 2015. "needed thesaurus" https://smartdefine.org/needed/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, needed thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/needed/thesaurus/synonyms>.
MLASmart Define. "needed thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/needed/thesaurus/synonyms>