Synonyms|390Antonyms|76|Broader|5Narrower|3Related|255

31 entries under critical topic. ×

19
required(verb, adjective, close, correct, exact)
16
essential(adjective, set, important, significant, capital)
15
indispensable(adjective, set, important, significant, essential)
13
necessary(adjective, set, important, capital, essential)
12
requisite(adjective, close, correct, exact, important)
8
imperative(adjective, important, significant, essential)
3
crucial(adjective, important, significant, capital, essential)
3
urgent(adjective, important, significant, essential)
2
important(adjective, essential, vital, fundamental)
2
basic(adjective, important, significant, essential)
2
fundamental(adjective, important, significant, capital, essential)
2
integral(adjective, important, significant, essential)
2
prerequisite(adjective, important, significant, essential)
1
bottom-line(adjective, important, significant, essential)
1
cardinal(adjective, important, significant, capital, essential)
1
coal-and-ice(important, essential, basic, fundamental)
1
constitutive(important, capital, essential, basic)
1
decisive(adjective, important, significant, essential)
1
heavy(important, essential, basic, fundamental)
1
key(important, essential, basic, fundamental)
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APASmart Define. (2015). needed thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/needed/thesaurus/synonyms
ChicagoSmart Define. 2015. "needed thesaurus" https://smartdefine.org/needed/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, needed thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/needed/thesaurus/synonyms>.
MLASmart Define. "needed thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/needed/thesaurus/synonyms>