Synonyms|285Antonyms|76|Broader|4Narrower|0Related|306

74 entries under essential topic. ×

1
prime(adjective, important, significant, original, serious)
1
primitive(adjective, important, significant, original)
1
quintessential(adjective, important, significant, basic)
1
radical(adjective, important, significant, original)
1
substratal(adjective, important, significant, original)
1
underlined(important, critical, basic, fundamental)
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
specified(adjective, significant, basic, vital)
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APASmart Define. (2015). indispensable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/indispensable/thesaurus/synonyms
ChicagoSmart Define. 2015. "indispensable thesaurus" https://smartdefine.org/indispensable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, indispensable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/indispensable/thesaurus/synonyms>.
MLASmart Define. "indispensable thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/indispensable/thesaurus/synonyms>