56 entries under basic topic. ×

14
required(adjective, important, significant, essential)
13
requisite(adjective, important, significant, essential)
13
indispensable(adjective, set, important, significant, capital)
13
necessary(adjective, set, important, original, capital)
13
needed(adjective, set, important, significant, capital)
11
essential(adjective, set, important, significant, original)
10
imperative(adjective, set, important, significant, capital)
7
fundamental(adjective, important, significant, original, capital)
7
prerequisite(adjective, set, important, significant, capital)
7
vital(adjective, set, important, significant, original)
6
crucial(adjective, important, significant, original, capital)
6
urgent(adjective, significant, essential, vital)
5
mandatory(adjective, set, significant, essential)
5
obligatory(adjective, significant, essential, vital)
5
wanted(adjective, important, significant, capital, essential)
4
cardinal(adjective, important, significant, capital, essential)
3
chief(adjective, important, significant, capital, essential)
3
compelling(adjective, significant, essential, vital)
3
compulsory(adjective, set, significant, essential)
3
exigent(adjective, significant, essential, vital)
<123>
11 years ago|6.3k views|share |citing 
APASmart Define. (2015). needful thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/needful/thesaurus/synonyms
ChicagoSmart Define. 2015. "needful thesaurus" https://smartdefine.org/needful/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, needful thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/needful/thesaurus/synonyms>.
MLASmart Define. "needful thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/needful/thesaurus/synonyms>