1
longstanding
1
longtime
1
lost(adjective, dead, past, previous, former)
1
mature(tired, gray, aged, older, elderly)
1
matured(tired, gray, mature, aged, older)
1
moldy(adjective, odd, old, primitive, unfashionable)
1
neglected(adjective, odd, old, primitive, unfashionable)
1
not current(expression, odd, old, primitive, unfashionable)
1
not modern(expression, odd, old, primitive, unfashionable)
1
not with it(expression, idiom, odd, old, primitive)
1
not young(expression, tired, gray, mature, aged)
1
odd(adjective, old, primitive, unfashionable, outdated)
1
of olden days(expression, idiom, odd, old, primitive)
1
of the old school(expression, idiom, odd, old, primitive)
1
old-fangled(adjective, odd, old, primitive, unfashionable)
1
old-hat(adjective, odd, old, primitive, unfashionable)
1
old-world
1
old as Methuselah(adjective, idiom, new, old)
1
old as the hills(adjective, idiom, new, old)
1
olden days(expression, adjective, late, old, past)
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APASmart Define. (2016). olden thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/olden/thesaurus/synonyms
ChicagoSmart Define. 2016. "olden thesaurus" https://smartdefine.org/olden/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, olden thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/olden/thesaurus/synonyms>.
MLASmart Define. "olden thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/olden/thesaurus/synonyms>