76 entries under requirement topic. ×

48
fundamental(noun, adjective, support, action, characteristic)
42
basic(noun, adjective, characteristic, drop, part)
41
necessary(noun, adjective, body, material, big)
31
requisite(noun, adjective, right, condition, important)
30
indispensable(adjective, characteristic, important, significant, original)
24
imperative(noun, adjective, form, fix, pass)
24
required(adjective, important, significant, capital, critical)
19
prerequisite(noun, adjective, form, fix, pass)
18
necessity(noun, condition, want, need, heart)
13
must(noun, adjective, right, want, need)
11
needful(adjective, set, important, significant, original)
9
condition(noun, position, need, shape, situation)
9
essence(noun, nature, feature, support, action)
8
need(noun, verb, concern, condition, demand)
7
demand(noun, right, concern, want, need)
6
desideratum(noun, right, concern, demand, want)
5
precondition(noun, concern, condition, need, basic)
5
proviso(noun, adjective, form, fix, pass)
5
stipulation(noun, form, fix, pass, position)
4
obligation(noun, right, want, need, certainty)
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APASmart Define. (2016). essential thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/essential/thesaurus/synonyms
ChicagoSmart Define. 2016. "essential thesaurus" https://smartdefine.org/essential/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, essential thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/essential/thesaurus/synonyms>.
MLASmart Define. "essential thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/essential/thesaurus/synonyms>