1
irrecoverable
1
kaput
1
lapsed
1
lost(adjective, dead, past, previous, former)
1
low-tech
1
mediaeval
1
metachronistic
1
metronomic
1
misdated
1
mistimed
1
mossy
1
neglected(adjective, odd, old, primitive, unfashionable)
1
new
1
no more
1
not current(expression, odd, square, old, primitive)
1
not modern(expression, odd, old, primitive, unfashionable)
1
not with it(expression, idiom, odd, out, old)
1
odd(adjective, old, primitive, unfashionable, outdated)
1
of olden days(expression, idiom, odd, old, primitive)
1
of the old school(expression, idiom, odd, square, old)
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APASmart Define. (2015). dated thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dated/thesaurus/synonyms
ChicagoSmart Define. 2015. "dated thesaurus" https://smartdefine.org/dated/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, dated thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dated/thesaurus/synonyms>.
MLASmart Define. "dated thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/dated/thesaurus/synonyms>