57 entries under essential topic. ×

1
meaningful(important, critical, fundamental, decisive)
1
meat-and-potatoes(important, critical, basic, fundamental)
1
momentous(adjective, important, significant, serious)
1
name(important, critical, basic, fundamental)
1
name-of-the-game(important, critical, basic, fundamental)
1
nitty-gritty(important, critical, basic, fundamental)
1
paramount(adjective, important, significant, serious)
1
quintessential(adjective, significant, basic, vital)
1
significant(adjective, important, critical, basic)
1
specified(adjective, significant, basic, vital)
1
underlined(important, critical, basic, fundamental)
0
necessitous(important, capital, vital, fundamental)
0
all-important(adjective, significant, basic, vital)
0
coal and ice(expression, idiom, important, critical)
0
name of game(expression, adjective, idiom, significant)
0
name of the game(expression, idiom, important, critical)
-1
prime(adjective, significant, basic, vital)
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APASmart Define. (2015). required thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/required/thesaurus/synonyms
ChicagoSmart Define. 2015. "required thesaurus" https://smartdefine.org/required/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, required thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/required/thesaurus/synonyms>.
MLASmart Define. "required thesaurus" 3 November 2015. Web. 23 September 2026. <https://smartdefine.org/required/thesaurus/synonyms>