1
longstanding
1
low-tech
1
mediaeval
1
new
1
newfangled
1
noncurrent
1
nonexistent
1
not current(expression, odd, square, old, primitive)
1
not modern(expression, odd, old, primitive, unfashionable)
1
not with it(expression, idiom, odd, old, primitive)
1
not worth saving(expression, idiom)
1
null and void(expression, idiom)
1
obsoleteness
1
obsoletism(noun, new, used, that)
1
odd(adjective, old, vulgarity, primitive, unfashionable)
1
of old(expression, last, original, odd, old)
1
of olden days(expression, idiom, odd, old, primitive)
1
of other times(expression, idiom, oldness)
1
of the old school(expression, idiom, odd, square, old)
1
old-fangled(adjective, odd, old, primitive, unfashionable)
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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>