62 entries under important topic. ×

32
necessary(adjective, essential, critical, vital)
32
essential(noun, adjective, form, fix, pass)
21
urgent(adjective, strong, firm, prompt, big)
20
indispensable(adjective, significant, serious, essential)
19
requisite(noun, adjective, need, significant)
18
pressing(adjective, firm, prompt, big)
17
obligatory(adjective, significant, essential, basic)
16
crucial(adjective, big, determined, significant)
16
required(adjective, significant, essential, critical)
15
critical(adjective, big, determined, significant)
13
vital(adjective, big, significant, substantial)
13
exigent(adjective, firm, prompt, big)
12
compulsory(adjective, set, significant, essential)
11
prerequisite(noun, adjective, form, fix, pass)
10
needful(adjective, set, significant, capital)
10
compelling(adjective, strong, significant, serious)
10
instant(adjective, prompt, big, extreme)
8
insistent(adjective, serious, critical, vital)
7
crying(adjective, firm, prompt, big)
7
dire(adjective, firm, prompt, big)
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APASmart Define. (2015). imperative thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/imperative/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperative thesaurus" https://smartdefine.org/imperative/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, imperative thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/imperative/thesaurus/synonyms>.
MLASmart Define. "imperative thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/imperative/thesaurus/synonyms>