0
called
0
censure
0
coal and ice(expression, idiom, important, essential, critical)
0
coerce
0
coin
0
component
0
compulsion
0
compulsives
0
compulsories
0
concealed(adjective, original, basic, fundamental, hidden)
0
congenital
0
constituent
0
constraint
0
constructive
0
core
0
cruciform
0
crux
0
currency
0
de rigueur(expression, adjective, significant, essential, basic)
0
deep(original, basic, primary)
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APASmart Define. (2015). indispensable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/indispensable/thesaurus/synonyms
ChicagoSmart Define. 2015. "indispensable thesaurus" https://smartdefine.org/indispensable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, indispensable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/indispensable/thesaurus/synonyms>.
MLASmart Define. "indispensable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/indispensable/thesaurus/synonyms>