75 entries under noun topic. ×

38
essential(adjective, right, condition, important)
29
necessary(adjective, important, want, need)
22
imperative(adjective, important, need, significant)
20
prerequisite(adjective, condition, important, want)
20
necessity(condition, want, need, essential)
19
requirement(right, condition, want, need)
14
must(adjective, right, condition, want)
12
condition(need, essential, essence, basic)
12
need(condition, want, essential, certainty)
11
demand(right, want, need, essential)
10
fundamental(adjective, important, need, significant)
10
proviso(adjective, condition, essential, requirement)
10
sine qua non(expression, idiom, condition, need)
8
basic(adjective, important, want, significant)
8
stipulation(condition, essential, requirement, qualification)
7
obligation(right, want, need, essential)
6
desideratum(right, want, need, essential)
6
precondition(condition, need, essential, certainty)
6
provision(condition, essential, requirement, qualification)
5
right(adjective, correct, fit, appropriate)
11 years ago|9.1k views|share |citing 
APASmart Define. (2015). requisite thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/requisite/thesaurus/synonyms
ChicagoSmart Define. 2015. "requisite thesaurus" https://smartdefine.org/requisite/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, requisite thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/requisite/thesaurus/synonyms>.
MLASmart Define. "requisite thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/requisite/thesaurus/synonyms>