Synonyms|161Antonyms|2|Broader|0Narrower|0Related|16

51 entries under obligatory topic. ×

1
conforming to accepted standards(adjective, right)
1
exigent(adjective, significant, essential, basic, vital)
1
expedient(adjective, significant, essential, basic, vital)
1
fundamental(adjective, significant, essential, basic, vital)
1
incumbent on(expression, adjective, significant, essential, basic)
1
momentous(adjective, significant, essential, basic, vital)
1
name of game(expression, adjective, idiom, significant, essential)
1
needed(adjective, significant, essential, basic, vital)
1
needful(adjective, significant, essential, basic, vital)
1
prerequisite(adjective, significant, essential, basic, vital)
1
pressing(adjective, significant, essential, basic, vital)
1
quintessential(adjective, significant, essential, basic, vital)
1
specified(adjective, significant, essential, basic, vital)
1
unavoidable(adjective, significant, essential, basic, vital)
1
urgent(adjective, significant, essential, basic, vital)
1
wanted(adjective, significant, essential, basic, vital)
0
basic(adjective, significant, essential, vital, fundamental)
0
called for
0
cardinal(adjective, significant, essential, basic, vital)
0
compulsatory(adjective, required, compulsory)
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APASmart Define. (2015). de rigueur thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/de_rigueur/thesaurus/synonyms
ChicagoSmart Define. 2015. "de rigueur thesaurus" https://smartdefine.org/de_rigueur/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, de rigueur thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/de_rigueur/thesaurus/synonyms>.
MLASmart Define. "de rigueur thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/de_rigueur/thesaurus/synonyms>