41 entries under important topic. ×

35
necessary(adjective, right, essential, critical)
24
needed(verb, adjective, close, correct, exact)
22
essential(adjective, significant, critical, basic)
19
requisite(adjective, close, correct, exact)
19
indispensable(adjective, significant, serious, essential)
17
imperative(adjective, significant, essential, critical)
15
needful(adjective, significant, capital, essential)
11
vital(adjective, significant, serious, essential)
10
wanted(verb, adjective, significant, serious)
8
prerequisite(adjective, significant, essential, critical)
6
urgent(adjective, significant, essential, critical)
5
pressing(adjective, significant, serious, essential)
4
critical(adjective, essential, basic, fundamental)
4
crucial(adjective, significant, serious, capital)
3
basic(adjective, significant, essential, critical)
3
compelling(adjective, significant, serious, essential)
3
fundamental(adjective, significant, capital, essential)
2
cardinal(adjective, significant, capital, essential)
2
chief(adjective, significant, serious, capital)
2
coal-and-ice(essential, critical, basic, fundamental)
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APASmart Define. (2015). required thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/required/thesaurus/synonyms
ChicagoSmart Define. 2015. "required thesaurus" https://smartdefine.org/required/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, required thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/required/thesaurus/synonyms>.
MLASmart Define. "required thesaurus" 3 November 2015. Web. 21 September 2026. <https://smartdefine.org/required/thesaurus/synonyms>