10
old-time(adjective, dull, new, last, original)
9
out(adjective, informal, dead, possible, unacceptable)
9
out of date(expression, adjective, idiom)
9
stale(adjective, dull, warm, last, original)
8
musty(adjective, stale, unfashionable, obsolete, antiquated)
8
primitive(adjective, last, original, old, outdated)
8
stuffy(adjective, warm, boring, stale, conventional)
7
behind the times(expression, adjective, idiom, cold, current)
7
belated(adjective, dead, past, lost, previous)
7
conventional(adjective, warm, tense, dreary, stale)
7
disused(adjective, outworn)
7
dowdy(adjective, dull, new, unfashionable, antiquated)
7
neglected(adjective, unfashionable, antiquated, archaic, outworn)
7
old-hat(adjective, unfashionable, outdated, obsolete, antiquated)
6
dead(adjective, informal, out, past, lost)
6
conservative(noun, adjective, dull, conventional, traditional)
6
oldfangled(adjective, last, original, dead, past)
6
out-dated
6
past(noun, adjective, last, original, primitive)
6
unprogressive(adjective, conventional, traditional, conservative, conformist)
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APASmart Define. (2015). old-fashioned thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/old-fashioned/thesaurus/synonyms
ChicagoSmart Define. 2015. "old-fashioned thesaurus" https://smartdefine.org/old-fashioned/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, old-fashioned thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/old-fashioned/thesaurus/synonyms>.
MLASmart Define. "old-fashioned thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/old-fashioned/thesaurus/synonyms>