49 entries under expression topic. ×

14
out of date(adjective, idiom, oldness)
12
old hat(adjective, idiom)
8
out of fashion(adjective, idiom, bad, cool)
5
behind the times(adjective, idiom, odd, current)
3
old fashioned
3
out of use(verb, idiom, phrasal verb)
2
hors de combat(idiom, inutility)
2
no more(idiom, the past)
2
on the shelf(adjective, idiom, new, used)
2
out of style(idiom, odd, old, primitive)
1
dead and buried
1
grown old(odd, old, primitive, unfashionable)
1
not current(odd, square, old, primitive)
1
not modern(odd, old, primitive, unfashionable)
1
not with it(idiom, odd, old, primitive)
1
not worth saving
1
null and void
1
of old(last, original, odd, old)
1
of olden days(idiom, odd, old, primitive)
1
of other times(idiom, oldness)
<123>
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APASmart Define. (2016). obsolete thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/obsolete/thesaurus/synonyms
ChicagoSmart Define. 2016. "obsolete thesaurus" https://smartdefine.org/obsolete/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, obsolete thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/obsolete/thesaurus/synonyms>.
MLASmart Define. "obsolete thesaurus" 28 March 2016. Web. 22 September 2026. <https://smartdefine.org/obsolete/thesaurus/synonyms>