Synonyms|285Antonyms|76|Broader|4Narrower|0Related|306
1
pants
1
part and parcel
1
prerequirement
1
prime(adjective, important, significant, original, serious)
1
primitive(adjective, important, significant, original, essential)
1
primordial(important, significant, original, basic, vital)
1
proviso(adjective, required)
1
quintessential(adjective, important, significant, essential, basic)
1
radical(adjective, important, significant, original, essential)
1
real
1
request
1
requirement
1
requisition
1
resident
1
rudimentary(important, significant, original, basic, vital)
1
running in the family
1
stipulated(adjective, required)
1
structural(important, significant, original, basic, vital)
1
subjective
1
substratal(adjective, important, significant, original, essential)
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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>