5
has-been
2
old hat(adjective, overfamiliar)
2
set
1
banal
1
bewhiskered
1
common
1
commonplace
1
corny
1
dated
1
fade
1
familiar
1
fusty
1
hackneyed
1
has-beens
1
moth-eaten
1
musty
1
old-fashioned
1
old fashioned
1
out of date(expression, idiom)
1
out of season(expression, idiom)
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APASmart Define. (2015). back-number thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/back-number/thesaurus/synonyms
ChicagoSmart Define. 2015. "back-number thesaurus" https://smartdefine.org/back-number/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, back-number thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/back-number/thesaurus/synonyms>.
MLASmart Define. "back-number thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/back-number/thesaurus/synonyms>