| broad | |
| canonical | |
| ceremonialistic(adjective, proper, strict, established, orderly) | |
| certain | |
| chilly(adjective, cool, cold, detached, unfriendly) | |
| chivalrous(proper, polite, elegant, refined, gracious) | |
| civilized(good, smooth, polite, elegant, gracious) | |
| clean(adjective, neat, tidy, thorough, logical) | |
| comme il faut(expression, idiom, good, well-mannered, well-behaved) | |
| confining | |
| controlled | |
| cordial(adjective, smooth, polite, polished, courteous) | |
| dance(noun, party, hop, ball, casuals) | |
| de rigueur(expression, good, civilized, well-mannered, staid) | |
| decent(adjective, good, correct, right, appropriate) | |
| decided(verb, affirmation) | |
| definite | |
| definitive | |
| diplomatic(adjective, smooth, polite, polished, courteous) | |
| distinct |
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| APA | Smart Define. (2016). formal thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/formal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "formal thesaurus" https://smartdefine.org/formal/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, formal thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/formal/thesaurus/synonyms>. |
| MLA | Smart Define. "formal thesaurus" 10 March 2016. Web. 23 September 2026. <https://smartdefine.org/formal/thesaurus/synonyms> |