Synonyms|161Antonyms|2|Broader|0Narrower|0Related|16
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crucial(adjective, significant, essential, basic, vital)
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decisive(adjective, significant, essential, basic, vital)
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demure(good, modest, polite, decent, moral)
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due
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elementary(adjective, significant, essential, basic, vital)
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enforced(required, obligatory, compulsory)
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essential(adjective, significant, basic, vital, necessary)
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fashionable
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gentlemanly
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in line(expression, modest, polite, decent, moral)
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in order
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incumbent
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indispensable(adjective, significant, essential, basic, vital)
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kosher(modest, polite, decent, moral, prim)
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ladylike
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mannerly(good, modest, polite, decent, moral)
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modest(good, polite, well-mannered, prim, well-behaved)
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moral(good, modest, polite, decent, prim)
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natural
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necessitous(essential, required, needed)
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APASmart Define. (2015). de rigueur thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/de_rigueur/thesaurus/synonyms
ChicagoSmart Define. 2015. "de rigueur thesaurus" https://smartdefine.org/de_rigueur/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, de rigueur thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/de_rigueur/thesaurus/synonyms>.
MLASmart Define. "de rigueur thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/de_rigueur/thesaurus/synonyms>