38 entries under decisive topic. ×

19
required(verb, adjective, close, correct, exact)
16
needful(adjective, set, important, significant, capital)
11
wanted(noun, verb, adjective, important, significant)
8
imperative(adjective, important, significant, essential, critical)
7
mandatory(adjective, set, significant, essential, basic)
5
compulsory(adjective, set, significant, essential, basic)
3
compelling(adjective, significant, essential, basic, vital)
3
critical(adjective, important, essential, basic, fundamental)
3
obligatory(adjective, significant, essential, basic, vital)
3
urgent(adjective, important, significant, essential, critical)
2
all-important(adjective, significant, essential, basic, vital)
2
fundamental(adjective, important, significant, capital, essential)
2
prerequisite(adjective, important, significant, essential, critical)
1
binding(adjective, significant, essential, basic, vital)
1
bottom-line(adjective, important, significant, essential, critical)
1
chief(adjective, important, significant, capital, essential)
1
coal-and-ice(important, essential, critical, basic, fundamental)
1
de rigueur(expression, adjective, idiom, significant, essential)
1
exigent(adjective, significant, essential, basic, vital)
1
expedient(adjective, significant, essential, basic, vital)
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APASmart Define. (2015). needed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/needed/thesaurus/synonyms
ChicagoSmart Define. 2015. "needed thesaurus" https://smartdefine.org/needed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, needed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/needed/thesaurus/synonyms>.
MLASmart Define. "needed thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/needed/thesaurus/synonyms>