Synonyms|521Antonyms|71|Broader|11Narrower|5Related|212

51 entries under obligatory topic. ×

3
cardinal(adjective, important, significant, original, essential)
3
chief(adjective, important, significant, capital, essential)
3
enforced(required, compulsory, mandatory)
3
paramount(adjective, important, significant, original, essential)
3
principal(adjective, important, significant, original, capital)
2
all-important(adjective, significant, essential, basic, vital)
2
bottom-line(adjective, important, significant, original, essential)
2
compelling(adjective, significant, essential, basic, vital)
2
constraining(adjective, required)
2
de rigueur(expression, adjective, idiom, significant, essential)
2
exigent(adjective, significant, essential, basic, vital)
2
prime(adjective, important, significant, original, essential)
2
unavoidable(adjective, significant, essential, basic, vital)
2
wanted(adjective, important, significant, capital, essential)
1
decisive(adjective, important, significant, essential, critical)
1
elementary(adjective, important, significant, original, essential)
1
expedient(adjective, good, correct, right, reasonable)
1
quintessential(adjective, significant, essential, basic, vital)
1
significant(adjective, important, original, essential, critical)
0
bounden(necessary, required, conclusive)
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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>