75 entries under essential topic. ×

1
quintessential(adjective, important, significant, basic)
1
substratal(adjective, important, significant, original)
1
underlined(big, heavy, important, substantial)
1
wanted(adjective, important, significant, serious, capital)
0
binding(adjective, significant, basic, vital)
0
bottom line(expression, important, significant, basic)
0
coal and ice(expression, idiom, important, critical)
0
de rigueur(expression, adjective, significant, basic)
0
expedient(adjective, significant, basic, vital)
0
incumbent on(expression, adjective, significant, basic)
0
name of game(expression, adjective, idiom, significant)
0
name of the game(expression, idiom, important, critical)
0
ruling(adjective, important, prominent, key)
0
specified(adjective, significant, basic, vital)
0
unavoidable(adjective, significant, basic, vital)
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APASmart Define. (2016). crucial thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/crucial/thesaurus/synonyms
ChicagoSmart Define. 2016. "crucial thesaurus" https://smartdefine.org/crucial/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, crucial thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/crucial/thesaurus/synonyms>.
MLASmart Define. "crucial thesaurus" 11 March 2016. Web. 29 September 2026. <https://smartdefine.org/crucial/thesaurus/synonyms>