10 entries under old-fashioned topic. ×

6
conventional(adjective, common, usual, straight, normal)
6
square(adjective, slang, common, ordinary, usual)
5
conservative(adjective, straight, conventional, predictable, conformist)
5
orthodox(adjective, common, ordinary, usual, regular)
2
stuffy(adjective, straight, conventional, conservative, predictable)
1
bourgeois(adjective, straight, conventional, conservative, predictable)
1
strait-laced(adjective, straight, conventional)
0
behind the times(expression, adjective, idiom, conventional)
0
dated(adjective, conventional)
0
out-of-date(adjective, conventional)
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APASmart Define. (2015). button-down thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/button-down/thesaurus/synonyms
ChicagoSmart Define. 2015. "button-down thesaurus" https://smartdefine.org/button-down/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, button-down thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/button-down/thesaurus/synonyms>.
MLASmart Define. "button-down thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/button-down/thesaurus/synonyms>