40 entries under essential topic. ×

12
needed(noun, verb, adjective, important, significant)
12
required(verb, adjective, important, significant, serious)
6
necessary(adjective, important, capital, vital)
4
needful(adjective, important, significant, capital)
4
urgent(adjective, significant, basic, vital)
2
indispensable(adjective, important, significant, serious, capital)
2
prerequisite(adjective, important, significant, capital)
2
requisite(adjective, important, significant, capital)
2
vital(adjective, important, significant, serious)
1
all-important(adjective, significant, basic, vital)
1
binding(adjective, significant, basic, vital)
1
bottom-line(adjective, significant, basic, vital)
1
cardinal(adjective, important, significant, capital)
1
chief(adjective, important, significant, serious, capital)
1
compelling(adjective, important, significant, serious)
1
compulsory(adjective, significant, basic, vital)
1
crucial(adjective, important, significant, serious, capital)
1
de rigueur(expression, adjective, significant, basic)
1
exigent(adjective, important, significant, serious)
1
expedient(adjective, significant, basic, vital)
<12>
10 years ago|8.8k views|share |citing 
APASmart Define. (2016). wanted thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/wanted/thesaurus/synonyms
ChicagoSmart Define. 2016. "wanted thesaurus" https://smartdefine.org/wanted/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, wanted thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/wanted/thesaurus/synonyms>.
MLASmart Define. "wanted thesaurus" 25 February 2016. Web. 22 September 2026. <https://smartdefine.org/wanted/thesaurus/synonyms>