2
destined(expected, predictable, inexorable, undeniable, unavoidable)
2
enforced(required, obligatory, compulsory, mandatory)
2
expected(predictable, unavoidable)
2
fixed(expected, predictable, inexorable, required, obligatory)
2
foreordained(expected, predictable, inexorable, undeniable, unavoidable)
2
head(key, chief, foremost)
2
imperious(required, obligatory, compulsory, mandatory)
2
importunate(big, important, significant, substantial, serious)
2
in demand(expression, adjective, idiom, basic, main)
2
incumbent on(expression, adjective, essential, required, obligatory)
2
inflexible(expected, predictable, inexorable, undeniable, unavoidable)
2
inherent(material, natural, essential, basic, key)
2
innate(material, natural, basic, living, functional)
2
irrevocable(adjective, expected, predictable, inexorable, required)
2
life-or-death(adjective, important, essential, critical, basic)
2
material(adjective, big, significant, substantial, valuable)
2
money(noun, form, means, cash, medium)
2
necessaries(noun, inevitability, needfulness)
2
preordained(expected, predictable, unavoidable)
2
prescribed(adjective, expected, predictable, inexorable, obligatory)
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APASmart Define. (2015). necessary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/necessary/thesaurus/synonyms
ChicagoSmart Define. 2015. "necessary thesaurus" https://smartdefine.org/necessary/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, necessary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/necessary/thesaurus/synonyms>.
MLASmart Define. "necessary thesaurus" 2 November 2015. Web. 22 September 2026. <https://smartdefine.org/necessary/thesaurus/synonyms>