37 entries under significant topic. ×

1
quintessential(adjective, essential, basic, vital)
1
required(adjective, essential, basic, vital)
1
requisite(adjective, essential, basic, vital)
1
specified(adjective, essential, basic, vital)
1
unavoidable(adjective, essential, basic, vital)
1
urgent(adjective, essential, basic, vital)
1
wanted(adjective, essential, basic, vital)
0
basic(adjective, essential, vital, fundamental)
0
cardinal(adjective, essential, basic, vital)
0
crucial(adjective, essential, basic, vital)
0
elementary(adjective, essential, basic, vital)
0
essential(adjective, basic, vital, necessary)
0
indispensable(adjective, essential, basic, vital)
0
paramount(adjective, essential, basic, vital)
0
prime(adjective, essential, basic, vital)
0
principal(adjective, essential, basic, vital)
0
vital(adjective, essential, basic, required)
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APASmart Define. (2015). incumbent on thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/incumbent_on/thesaurus/synonyms
ChicagoSmart Define. 2015. "incumbent on thesaurus" https://smartdefine.org/incumbent_on/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, incumbent on thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/incumbent_on/thesaurus/synonyms>.
MLASmart Define. "incumbent on thesaurus" 8 May 2015. Web. 29 September 2026. <https://smartdefine.org/incumbent_on/thesaurus/synonyms>