98 entries under adjective topic. ×

35
necessary(right, important, essential, critical)
24
needed(verb, close, correct, exact)
22
essential(important, significant, critical, basic)
20
compulsory(significant, essential, basic, vital)
19
requisite(close, correct, exact, important)
19
indispensable(important, significant, serious, essential)
19
obligatory(right, significant, essential, basic)
17
imperative(important, significant, essential, critical)
16
mandatory(right, significant, essential, basic)
15
needful(important, significant, capital, essential)
11
vital(important, significant, serious, essential)
10
desired(verb, necessary, wanted, needed)
10
wanted(verb, important, significant, serious)
9
demanded(verb, obliged)
8
prerequisite(important, significant, essential, critical)
7
binding(significant, essential, basic, vital)
7
bound(verb, destined, obligated)
6
urgent(important, significant, essential, critical)
5
called for(verb, expression, phrasal verb, right)
5
inevitable(obvious, obligatory, inescapable)
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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>