0
moribund
0
mouldering
0
obsoleteness
0
of yore(expression, last, original, venerable, other)
0
old man(expression, idiom)
0
old timer(expression, idiom)
0
oldie
0
once(last, original, previous, venerable, other)
0
one-time(last, previous, other)
0
original(last, previous, venerable, other, obsolete)
0
other(last, previous)
0
outdate
0
outdid
0
outdo
0
outdoes
0
outdoing
0
outdone
0
pass
0
poky
0
prehistorical
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APASmart Define. (2015). outdated thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/outdated/thesaurus/synonyms
ChicagoSmart Define. 2015. "outdated thesaurus" https://smartdefine.org/outdated/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, outdated thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/outdated/thesaurus/synonyms>.
MLASmart Define. "outdated thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/outdated/thesaurus/synonyms>